Home / 29,369,941.87-40,479,215.92-21,512,761.38

Finding the Fourth Proportional to 29,369,941.87, 40,479,215.92 and 21,512,761.38

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Solution

The fourth proportional to 29,369,941.87, 40,479,215.92 and 21,512,761.38 is: 29,650,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,369,941.87 : 40,479,215.92 = 21,512,761.38 : x
  2. Step 2: Convert to fraction form
    29,369,941.87/40,479,215.92 = 21,512,761.38/x
  3. Step 3: Cross multiply
    29,369,941.87x = 40,479,215.92 × 21,512,761.38
  4. Step 4: Simplify right side
    29,369,941.87x = 870,819,712,734,061.12
  5. Step 5: Solve for x
    x = 870,819,712,734,061.12/29,369,941.87
  6. Step 6: Final answer
    x = 29,650,031.88

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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.