Home / 72,348,005.20-108,522,007.80-43,650,191.20

Finding the Fourth Proportional to 72,348,005.20, 108,522,007.80 and 43,650,191.20

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Solution

The fourth proportional to 72,348,005.20, 108,522,007.80 and 43,650,191.20 is: 65,475,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,348,005.20 : 108,522,007.80 = 43,650,191.20 : x
  2. Step 2: Convert to fraction form
    72,348,005.20/108,522,007.80 = 43,650,191.20/x
  3. Step 3: Cross multiply
    72,348,005.20x = 108,522,007.80 × 43,650,191.20
  4. Step 4: Simplify right side
    72,348,005.20x = 4,737,006,389,877,892
  5. Step 5: Solve for x
    x = 4,737,006,389,877,892/72,348,005.20
  6. Step 6: Final answer
    x = 65,475,286.80

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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.