Home / 7,149,132.07-9,865,872.36-3,885,944.78

Finding the Fourth Proportional to 7,149,132.07, 9,865,872.36 and 3,885,944.78

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Solution

The fourth proportional to 7,149,132.07, 9,865,872.36 and 3,885,944.78 is: 5,362,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,132.07 : 9,865,872.36 = 3,885,944.78 : x
  2. Step 2: Convert to fraction form
    7,149,132.07/9,865,872.36 = 3,885,944.78/x
  3. Step 3: Cross multiply
    7,149,132.07x = 9,865,872.36 × 3,885,944.78
  4. Step 4: Simplify right side
    7,149,132.07x = 38,338,235,178,058.55
  5. Step 5: Solve for x
    x = 38,338,235,178,058.55/7,149,132.07
  6. Step 6: Final answer
    x = 5,362,641.90

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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.