Home / 20,732,414.60-31,098,621.90-9,947,880.20

Finding the Fourth Proportional to 20,732,414.60, 31,098,621.90 and 9,947,880.20

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Solution

The fourth proportional to 20,732,414.60, 31,098,621.90 and 9,947,880.20 is: 14,921,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,414.60 : 31,098,621.90 = 9,947,880.20 : x
  2. Step 2: Convert to fraction form
    20,732,414.60/31,098,621.90 = 9,947,880.20/x
  3. Step 3: Cross multiply
    20,732,414.60x = 31,098,621.90 × 9,947,880.20
  4. Step 4: Simplify right side
    20,732,414.60x = 309,365,365,046,296.31
  5. Step 5: Solve for x
    x = 309,365,365,046,296.31/20,732,414.60
  6. Step 6: Final answer
    x = 14,921,820.30

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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.