Home / 21,156,475.20-31,734,712.80-13,598,203.20

Finding the Fourth Proportional to 21,156,475.20, 31,734,712.80 and 13,598,203.20

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Solution

The fourth proportional to 21,156,475.20, 31,734,712.80 and 13,598,203.20 is: 20,397,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156,475.20 : 31,734,712.80 = 13,598,203.20 : x
  2. Step 2: Convert to fraction form
    21,156,475.20/31,734,712.80 = 13,598,203.20/x
  3. Step 3: Cross multiply
    21,156,475.20x = 31,734,712.80 × 13,598,203.20
  4. Step 4: Simplify right side
    21,156,475.20x = 431,535,073,148,040.94
  5. Step 5: Solve for x
    x = 431,535,073,148,040.94/21,156,475.20
  6. Step 6: Final answer
    x = 20,397,304.80

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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.