Home / 72,230,948.10-108,346,422.15-66,703,961.70

Finding the Fourth Proportional to 72,230,948.10, 108,346,422.15 and 66,703,961.70

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Solution

The fourth proportional to 72,230,948.10, 108,346,422.15 and 66,703,961.70 is: 100,055,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,230,948.10 : 108,346,422.15 = 66,703,961.70 : x
  2. Step 2: Convert to fraction form
    72,230,948.10/108,346,422.15 = 66,703,961.70/x
  3. Step 3: Cross multiply
    72,230,948.10x = 108,346,422.15 × 66,703,961.70
  4. Step 4: Simplify right side
    72,230,948.10x = 7,227,135,593,425,632
  5. Step 5: Solve for x
    x = 7,227,135,593,425,632/72,230,948.10
  6. Step 6: Final answer
    x = 100,055,942.55

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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.