Home / 145,008,006.70-217,512,010.05-83,702,022.70

Finding the Fourth Proportional to 145,008,006.70, 217,512,010.05 and 83,702,022.70

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Solution

The fourth proportional to 145,008,006.70, 217,512,010.05 and 83,702,022.70 is: 125,553,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,008,006.70 : 217,512,010.05 = 83,702,022.70 : x
  2. Step 2: Convert to fraction form
    145,008,006.70/217,512,010.05 = 83,702,022.70/x
  3. Step 3: Cross multiply
    145,008,006.70x = 217,512,010.05 × 83,702,022.70
  4. Step 4: Simplify right side
    145,008,006.70x = 18,206,195,202,727,728
  5. Step 5: Solve for x
    x = 18,206,195,202,727,728/145,008,006.70
  6. Step 6: Final answer
    x = 125,553,034.05

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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.