Home / 77,976,441.90-107,603,398.35-42,687,481.86

Finding the Fourth Proportional to 77,976,441.90, 107,603,398.35 and 42,687,481.86

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Solution

The fourth proportional to 77,976,441.90, 107,603,398.35 and 42,687,481.86 is: 58,906,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976,441.90 : 107,603,398.35 = 42,687,481.86 : x
  2. Step 2: Convert to fraction form
    77,976,441.90/107,603,398.35 = 42,687,481.86/x
  3. Step 3: Cross multiply
    77,976,441.90x = 107,603,398.35 × 42,687,481.86
  4. Step 4: Simplify right side
    77,976,441.90x = 4,593,318,115,139,979
  5. Step 5: Solve for x
    x = 4,593,318,115,139,979/77,976,441.90
  6. Step 6: Final answer
    x = 58,906,485.13

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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.