Home / 20,723,237.60-31,084,856.40-13,955,007.20

Finding the Fourth Proportional to 20,723,237.60, 31,084,856.40 and 13,955,007.20

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Solution

The fourth proportional to 20,723,237.60, 31,084,856.40 and 13,955,007.20 is: 20,932,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,237.60 : 31,084,856.40 = 13,955,007.20 : x
  2. Step 2: Convert to fraction form
    20,723,237.60/31,084,856.40 = 13,955,007.20/x
  3. Step 3: Cross multiply
    20,723,237.60x = 31,084,856.40 × 13,955,007.20
  4. Step 4: Simplify right side
    20,723,237.60x = 433,789,394,872,966.06
  5. Step 5: Solve for x
    x = 433,789,394,872,966.06/20,723,237.60
  6. Step 6: Final answer
    x = 20,932,510.80

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1.5x scale

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.