Home / 20,728,191.60-31,092,287.40-15,945,222.60

Finding the Fourth Proportional to 20,728,191.60, 31,092,287.40 and 15,945,222.60

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Solution

The fourth proportional to 20,728,191.60, 31,092,287.40 and 15,945,222.60 is: 23,917,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,191.60 : 31,092,287.40 = 15,945,222.60 : x
  2. Step 2: Convert to fraction form
    20,728,191.60/31,092,287.40 = 15,945,222.60/x
  3. Step 3: Cross multiply
    20,728,191.60x = 31,092,287.40 × 15,945,222.60
  4. Step 4: Simplify right side
    20,728,191.60x = 495,773,443,736,175.19
  5. Step 5: Solve for x
    x = 495,773,443,736,175.19/20,728,191.60
  6. Step 6: Final answer
    x = 23,917,833.90

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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.