Home / 20,732,409.60-31,098,614.40-9,947,875.20

Finding the Fourth Proportional to 20,732,409.60, 31,098,614.40 and 9,947,875.20

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Solution

The fourth proportional to 20,732,409.60, 31,098,614.40 and 9,947,875.20 is: 14,921,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,409.60 : 31,098,614.40 = 9,947,875.20 : x
  2. Step 2: Convert to fraction form
    20,732,409.60/31,098,614.40 = 9,947,875.20/x
  3. Step 3: Cross multiply
    20,732,409.60x = 31,098,614.40 × 9,947,875.20
  4. Step 4: Simplify right side
    20,732,409.60x = 309,365,134,944,122.81
  5. Step 5: Solve for x
    x = 309,365,134,944,122.81/20,732,409.60
  6. Step 6: Final answer
    x = 14,921,812.80

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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.