Home / 72,175,010.46-99,601,407.86-39,135,199.56

Finding the Fourth Proportional to 72,175,010.46, 99,601,407.86 and 39,135,199.56

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Solution

The fourth proportional to 72,175,010.46, 99,601,407.86 and 39,135,199.56 is: 54,006,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,175,010.46 : 99,601,407.86 = 39,135,199.56 : x
  2. Step 2: Convert to fraction form
    72,175,010.46/99,601,407.86 = 39,135,199.56/x
  3. Step 3: Cross multiply
    72,175,010.46x = 99,601,407.86 × 39,135,199.56
  4. Step 4: Simplify right side
    72,175,010.46x = 3,897,920,972,862,377
  5. Step 5: Solve for x
    x = 3,897,920,972,862,377/72,175,010.46
  6. Step 6: Final answer
    x = 54,006,517.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.