Home / 40,480,787.80-60,721,134.12-13,187,035.90

Finding the Fourth Proportional to 40,480,787.80, 60,721,134.12 and 13,187,035.90

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Solution

The fourth proportional to 40,480,787.80, 60,721,134.12 and 13,187,035.90 is: 19,780,538.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,480,787.80 : 60,721,134.12 = 13,187,035.90 : x
  2. Step 2: Convert to fraction form
    40,480,787.80/60,721,134.12 = 13,187,035.90/x
  3. Step 3: Cross multiply
    40,480,787.80x = 60,721,134.12 × 13,187,035.90
  4. Step 4: Simplify right side
    40,480,787.80x = 800,731,775,529,154.88
  5. Step 5: Solve for x
    x = 800,731,775,529,154.88/40,480,787.80
  6. Step 6: Final answer
    x = 19,780,538.35

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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.