Home / 1,310,289,983,177.80-1,965,434,974,766.70-639,174,384,099.40

Finding the Fourth Proportional to 1,310,289,983,177.80, 1,965,434,974,766.70 and 639,174,384,099.40

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Solution

The fourth proportional to 1,310,289,983,177.80, 1,965,434,974,766.70 and 639,174,384,099.40 is: 958,761,576,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,289,983,177.80 : 1,965,434,974,766.70 = 639,174,384,099.40 : x
  2. Step 2: Convert to fraction form
    1,310,289,983,177.80/1,965,434,974,766.70 = 639,174,384,099.40/x
  3. Step 3: Cross multiply
    1,310,289,983,177.80x = 1,965,434,974,766.70 × 639,174,384,099.40
  4. Step 4: Simplify right side
    1,310,289,983,177.80x = 1,256,255,689,483,925,376,204,800
  5. Step 5: Solve for x
    x = 1,256,255,689,483,925,376,204,800/1,310,289,983,177.80
  6. Step 6: Final answer
    x = 958,761,576,149.10

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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.