Home / 1,310,289,983,178.10-1,965,434,974,767.10-639,174,384,099.65

Finding the Fourth Proportional to 1,310,289,983,178.10, 1,965,434,974,767.10 and 639,174,384,099.65

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Solution

The fourth proportional to 1,310,289,983,178.10, 1,965,434,974,767.10 and 639,174,384,099.65 is: 958,761,576,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,289,983,178.10 : 1,965,434,974,767.10 = 639,174,384,099.65 : x
  2. Step 2: Convert to fraction form
    1,310,289,983,178.10/1,965,434,974,767.10 = 639,174,384,099.65/x
  3. Step 3: Cross multiply
    1,310,289,983,178.10x = 1,965,434,974,767.10 × 639,174,384,099.65
  4. Step 4: Simplify right side
    1,310,289,983,178.10x = 1,256,255,689,484,672,432,078,848
  5. Step 5: Solve for x
    x = 1,256,255,689,484,672,432,078,848/1,310,289,983,178.10
  6. Step 6: Final answer
    x = 958,761,576,149.45

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Double scale
Find fourth proportional to 1,310,289,983,179.10, 1,965,434,974,768.60 and 639,174,384,100.65
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.