Home / 100,822,812.70-150,856,305.45-66,810,588.70

Finding the Fourth Proportional to 100,822,812.70, 150,856,305.45 and 66,810,588.70

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Solution

The fourth proportional to 100,822,812.70, 150,856,305.45 and 66,810,588.70 is: 99,965,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,822,812.70 : 150,856,305.45 = 66,810,588.70 : x
  2. Step 2: Convert to fraction form
    100,822,812.70/150,856,305.45 = 66,810,588.70/x
  3. Step 3: Cross multiply
    100,822,812.70x = 150,856,305.45 × 66,810,588.70
  4. Step 4: Simplify right side
    100,822,812.70x = 10,078,798,576,221,518
  5. Step 5: Solve for x
    x = 10,078,798,576,221,518/100,822,812.70
  6. Step 6: Final answer
    x = 99,965,457.28

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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.