Home / 157,420,814.27-217,247,294.12-86,861,001.69

Finding the Fourth Proportional to 157,420,814.27, 217,247,294.12 and 86,861,001.69

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Solution

The fourth proportional to 157,420,814.27, 217,247,294.12 and 86,861,001.69 is: 119,871,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,420,814.27 : 217,247,294.12 = 86,861,001.69 : x
  2. Step 2: Convert to fraction form
    157,420,814.27/217,247,294.12 = 86,861,001.69/x
  3. Step 3: Cross multiply
    157,420,814.27x = 217,247,294.12 × 86,861,001.69
  4. Step 4: Simplify right side
    157,420,814.27x = 18,870,317,581,270,944
  5. Step 5: Solve for x
    x = 18,870,317,581,270,944/157,420,814.27
  6. Step 6: Final answer
    x = 119,871,807.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.