Home / 80,968,393.60-121,452,590.40-73,158,179.20

Finding the Fourth Proportional to 80,968,393.60, 121,452,590.40 and 73,158,179.20

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Solution

The fourth proportional to 80,968,393.60, 121,452,590.40 and 73,158,179.20 is: 109,737,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,968,393.60 : 121,452,590.40 = 73,158,179.20 : x
  2. Step 2: Convert to fraction form
    80,968,393.60/121,452,590.40 = 73,158,179.20/x
  3. Step 3: Cross multiply
    80,968,393.60x = 121,452,590.40 × 73,158,179.20
  4. Step 4: Simplify right side
    80,968,393.60x = 8,885,250,372,787,400
  5. Step 5: Solve for x
    x = 8,885,250,372,787,400/80,968,393.60
  6. Step 6: Final answer
    x = 109,737,268.80

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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.