Home / 80,933,326.80-121,399,990.20-72,430,270.80

Finding the Fourth Proportional to 80,933,326.80, 121,399,990.20 and 72,430,270.80

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Solution

The fourth proportional to 80,933,326.80, 121,399,990.20 and 72,430,270.80 is: 108,645,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,933,326.80 : 121,399,990.20 = 72,430,270.80 : x
  2. Step 2: Convert to fraction form
    80,933,326.80/121,399,990.20 = 72,430,270.80/x
  3. Step 3: Cross multiply
    80,933,326.80x = 121,399,990.20 × 72,430,270.80
  4. Step 4: Simplify right side
    80,933,326.80x = 8,793,034,165,303,346
  5. Step 5: Solve for x
    x = 8,793,034,165,303,346/80,933,326.80
  6. Step 6: Final answer
    x = 108,645,406.20

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Double scale
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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.