Home / 21,440,685.92-32,158,369.22-12,692,170.17

Finding the Fourth Proportional to 21,440,685.92, 32,158,369.22 and 12,692,170.17

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Solution

The fourth proportional to 21,440,685.92, 32,158,369.22 and 12,692,170.17 is: 19,036,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440,685.92 : 32,158,369.22 = 12,692,170.17 : x
  2. Step 2: Convert to fraction form
    21,440,685.92/32,158,369.22 = 12,692,170.17/x
  3. Step 3: Cross multiply
    21,440,685.92x = 32,158,369.22 × 12,692,170.17
  4. Step 4: Simplify right side
    21,440,685.92x = 408,159,494,466,469.31
  5. Step 5: Solve for x
    x = 408,159,494,466,469.31/21,440,685.92
  6. Step 6: Final answer
    x = 19,036,680.83

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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.