Home / 72,132,436.44-99,542,507.45-39,093,487.38

Finding the Fourth Proportional to 72,132,436.44, 99,542,507.45 and 39,093,487.38

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Solution

The fourth proportional to 72,132,436.44, 99,542,507.45 and 39,093,487.38 is: 53,948,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,132,436.44 : 99,542,507.45 = 39,093,487.38 : x
  2. Step 2: Convert to fraction form
    72,132,436.44/99,542,507.45 = 39,093,487.38/x
  3. Step 3: Cross multiply
    72,132,436.44x = 99,542,507.45 × 39,093,487.38
  4. Step 4: Simplify right side
    72,132,436.44x = 3,891,463,758,574,663.50
  5. Step 5: Solve for x
    x = 3,891,463,758,574,663.50/72,132,436.44
  6. Step 6: Final answer
    x = 53,948,874.47

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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.