Home / 80,734,187.55-121,101,281.33-66,385,280.55

Finding the Fourth Proportional to 80,734,187.55, 121,101,281.33 and 66,385,280.55

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Solution

The fourth proportional to 80,734,187.55, 121,101,281.33 and 66,385,280.55 is: 99,577,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734,187.55 : 121,101,281.33 = 66,385,280.55 : x
  2. Step 2: Convert to fraction form
    80,734,187.55/121,101,281.33 = 66,385,280.55/x
  3. Step 3: Cross multiply
    80,734,187.55x = 121,101,281.33 × 66,385,280.55
  4. Step 4: Simplify right side
    80,734,187.55x = 8,039,342,535,724,601
  5. Step 5: Solve for x
    x = 8,039,342,535,724,601/80,734,187.55
  6. Step 6: Final answer
    x = 99,577,920.83

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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.