Home / 80,915,515.80-121,373,273.70-80,348,645.40

Finding the Fourth Proportional to 80,915,515.80, 121,373,273.70 and 80,348,645.40

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Solution

The fourth proportional to 80,915,515.80, 121,373,273.70 and 80,348,645.40 is: 120,522,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,915,515.80 : 121,373,273.70 = 80,348,645.40 : x
  2. Step 2: Convert to fraction form
    80,915,515.80/121,373,273.70 = 80,348,645.40/x
  3. Step 3: Cross multiply
    80,915,515.80x = 121,373,273.70 × 80,348,645.40
  4. Step 4: Simplify right side
    80,915,515.80x = 9,752,178,129,558,446
  5. Step 5: Solve for x
    x = 9,752,178,129,558,446/80,915,515.80
  6. Step 6: Final answer
    x = 120,522,968.10

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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.