Home / 90,374,154.72-124,776,393.42-69,428,883.96

Finding the Fourth Proportional to 90,374,154.72, 124,776,393.42 and 69,428,883.96

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Solution

The fourth proportional to 90,374,154.72, 124,776,393.42 and 69,428,883.96 is: 95,858,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374,154.72 : 124,776,393.42 = 69,428,883.96 : x
  2. Step 2: Convert to fraction form
    90,374,154.72/124,776,393.42 = 69,428,883.96/x
  3. Step 3: Cross multiply
    90,374,154.72x = 124,776,393.42 × 69,428,883.96
  4. Step 4: Simplify right side
    90,374,154.72x = 8,663,085,739,704,487
  5. Step 5: Solve for x
    x = 8,663,085,739,704,487/90,374,154.72
  6. Step 6: Final answer
    x = 95,858,000.18

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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.