Home / 81,730,292.88-122,625,332.90-38,031,892.38

Finding the Fourth Proportional to 81,730,292.88, 122,625,332.90 and 38,031,892.38

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Solution

The fourth proportional to 81,730,292.88, 122,625,332.90 and 38,031,892.38 is: 57,061,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,730,292.88 : 122,625,332.90 = 38,031,892.38 : x
  2. Step 2: Convert to fraction form
    81,730,292.88/122,625,332.90 = 38,031,892.38/x
  3. Step 3: Cross multiply
    81,730,292.88x = 122,625,332.90 × 38,031,892.38
  4. Step 4: Simplify right side
    81,730,292.88x = 4,663,673,463,914,474
  5. Step 5: Solve for x
    x = 4,663,673,463,914,474/81,730,292.88
  6. Step 6: Final answer
    x = 57,061,749.07

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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.