Home / 79,211,335.86-118,815,148.98-20,923,081.83

Finding the Fourth Proportional to 79,211,335.86, 118,815,148.98 and 20,923,081.83

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Solution

The fourth proportional to 79,211,335.86, 118,815,148.98 and 20,923,081.83 is: 31,384,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,211,335.86 : 118,815,148.98 = 20,923,081.83 : x
  2. Step 2: Convert to fraction form
    79,211,335.86/118,815,148.98 = 20,923,081.83/x
  3. Step 3: Cross multiply
    79,211,335.86x = 118,815,148.98 × 20,923,081.83
  4. Step 4: Simplify right side
    79,211,335.86x = 2,485,979,084,752,181
  5. Step 5: Solve for x
    x = 2,485,979,084,752,181/79,211,335.86
  6. Step 6: Final answer
    x = 31,384,132.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.