Home / 90,374,169.72-124,776,414.12-69,428,898.96

Finding the Fourth Proportional to 90,374,169.72, 124,776,414.12 and 69,428,898.96

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Solution

The fourth proportional to 90,374,169.72, 124,776,414.12 and 69,428,898.96 is: 95,858,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374,169.72 : 124,776,414.12 = 69,428,898.96 : x
  2. Step 2: Convert to fraction form
    90,374,169.72/124,776,414.12 = 69,428,898.96/x
  3. Step 3: Cross multiply
    90,374,169.72x = 124,776,414.12 × 69,428,898.96
  4. Step 4: Simplify right side
    90,374,169.72x = 8,663,089,048,528,597
  5. Step 5: Solve for x
    x = 8,663,089,048,528,597/90,374,169.72
  6. Step 6: Final answer
    x = 95,858,020.89

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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.