Home / 90,361,020.28-124,699,169.66-49,107,911.44

Finding the Fourth Proportional to 90,361,020.28, 124,699,169.66 and 49,107,911.44

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Solution

The fourth proportional to 90,361,020.28, 124,699,169.66 and 49,107,911.44 is: 67,769,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,361,020.28 : 124,699,169.66 = 49,107,911.44 : x
  2. Step 2: Convert to fraction form
    90,361,020.28/124,699,169.66 = 49,107,911.44/x
  3. Step 3: Cross multiply
    90,361,020.28x = 124,699,169.66 × 49,107,911.44
  4. Step 4: Simplify right side
    90,361,020.28x = 6,123,715,780,304,814
  5. Step 5: Solve for x
    x = 6,123,715,780,304,814/90,361,020.28
  6. Step 6: Final answer
    x = 67,769,440.42

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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.