Home / 85,220,524.50-127,849,731.12-39,757,518.42

Finding the Fourth Proportional to 85,220,524.50, 127,849,731.12 and 39,757,518.42

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Solution

The fourth proportional to 85,220,524.50, 127,849,731.12 and 39,757,518.42 is: 59,645,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220,524.50 : 127,849,731.12 = 39,757,518.42 : x
  2. Step 2: Convert to fraction form
    85,220,524.50/127,849,731.12 = 39,757,518.42/x
  3. Step 3: Cross multiply
    85,220,524.50x = 127,849,731.12 × 39,757,518.42
  4. Step 4: Simplify right side
    85,220,524.50x = 5,082,988,039,995,448
  5. Step 5: Solve for x
    x = 5,082,988,039,995,448/85,220,524.50
  6. Step 6: Final answer
    x = 59,645,115.66

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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.