Home / 80,760,212.80-121,140,319.20-48,511,585.60

Finding the Fourth Proportional to 80,760,212.80, 121,140,319.20 and 48,511,585.60

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Solution

The fourth proportional to 80,760,212.80, 121,140,319.20 and 48,511,585.60 is: 72,767,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,760,212.80 : 121,140,319.20 = 48,511,585.60 : x
  2. Step 2: Convert to fraction form
    80,760,212.80/121,140,319.20 = 48,511,585.60/x
  3. Step 3: Cross multiply
    80,760,212.80x = 121,140,319.20 × 48,511,585.60
  4. Step 4: Simplify right side
    80,760,212.80x = 5,876,708,964,482,124
  5. Step 5: Solve for x
    x = 5,876,708,964,482,124/80,760,212.80
  6. Step 6: Final answer
    x = 72,767,378.40

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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.