Home / 21,371,545.60-32,060,428.80-6,991,129.60

Finding the Fourth Proportional to 21,371,545.60, 32,060,428.80 and 6,991,129.60

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Solution

The fourth proportional to 21,371,545.60, 32,060,428.80 and 6,991,129.60 is: 10,487,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371,545.60 : 32,060,428.80 = 6,991,129.60 : x
  2. Step 2: Convert to fraction form
    21,371,545.60/32,060,428.80 = 6,991,129.60/x
  3. Step 3: Cross multiply
    21,371,545.60x = 32,060,428.80 × 6,991,129.60
  4. Step 4: Simplify right side
    21,371,545.60x = 224,138,612,772,372.47
  5. Step 5: Solve for x
    x = 224,138,612,772,372.47/21,371,545.60
  6. Step 6: Final answer
    x = 10,487,711.88

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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.