Home / 90,287,809.20-124,597,908.90-49,034,996.82

Finding the Fourth Proportional to 90,287,809.20, 124,597,908.90 and 49,034,996.82

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Solution

The fourth proportional to 90,287,809.20, 124,597,908.90 and 49,034,996.82 is: 67,668,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,287,809.20 : 124,597,908.90 = 49,034,996.82 : x
  2. Step 2: Convert to fraction form
    90,287,809.20/124,597,908.90 = 49,034,996.82/x
  3. Step 3: Cross multiply
    90,287,809.20x = 124,597,908.90 × 49,034,996.82
  4. Step 4: Simplify right side
    90,287,809.20x = 6,109,658,066,690,150
  5. Step 5: Solve for x
    x = 6,109,658,066,690,150/90,287,809.20
  6. Step 6: Final answer
    x = 67,668,693.27

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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.