Home / 90,287,808.20-124,597,907.52-49,034,995.82

Finding the Fourth Proportional to 90,287,808.20, 124,597,907.52 and 49,034,995.82

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Solution

The fourth proportional to 90,287,808.20, 124,597,907.52 and 49,034,995.82 is: 67,668,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,287,808.20 : 124,597,907.52 = 49,034,995.82 : x
  2. Step 2: Convert to fraction form
    90,287,808.20/124,597,907.52 = 49,034,995.82/x
  3. Step 3: Cross multiply
    90,287,808.20x = 124,597,907.52 × 49,034,995.82
  4. Step 4: Simplify right side
    90,287,808.20x = 6,109,657,874,359,895
  5. Step 5: Solve for x
    x = 6,109,657,874,359,895/90,287,808.20
  6. Step 6: Final answer
    x = 67,668,691.89

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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.