Home / 90,394,747.12-124,739,453.82-49,141,278.64

Finding the Fourth Proportional to 90,394,747.12, 124,739,453.82 and 49,141,278.64

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Solution

The fourth proportional to 90,394,747.12, 124,739,453.82 and 49,141,278.64 is: 67,812,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,394,747.12 : 124,739,453.82 = 49,141,278.64 : x
  2. Step 2: Convert to fraction form
    90,394,747.12/124,739,453.82 = 49,141,278.64/x
  3. Step 3: Cross multiply
    90,394,747.12x = 124,739,453.82 × 49,141,278.64
  4. Step 4: Simplify right side
    90,394,747.12x = 6,129,856,257,570,032
  5. Step 5: Solve for x
    x = 6,129,856,257,570,032/90,394,747.12
  6. Step 6: Final answer
    x = 67,812,084.80

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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.