Home / 77,976,445.44-107,603,403.20-42,687,485.36

Finding the Fourth Proportional to 77,976,445.44, 107,603,403.20 and 42,687,485.36

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Solution

The fourth proportional to 77,976,445.44, 107,603,403.20 and 42,687,485.36 is: 58,906,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976,445.44 : 107,603,403.20 = 42,687,485.36 : x
  2. Step 2: Convert to fraction form
    77,976,445.44/107,603,403.20 = 42,687,485.36/x
  3. Step 3: Cross multiply
    77,976,445.44x = 107,603,403.20 × 42,687,485.36
  4. Step 4: Simplify right side
    77,976,445.44x = 4,593,318,698,786,177
  5. Step 5: Solve for x
    x = 4,593,318,698,786,177/77,976,445.44
  6. Step 6: Final answer
    x = 58,906,489.94

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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.