Home / 80,267,797.48-120,452,084.70-75,102,978.28

Finding the Fourth Proportional to 80,267,797.48, 120,452,084.70 and 75,102,978.28

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Solution

The fourth proportional to 80,267,797.48, 120,452,084.70 and 75,102,978.28 is: 112,701,613.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,267,797.48 : 120,452,084.70 = 75,102,978.28 : x
  2. Step 2: Convert to fraction form
    80,267,797.48/120,452,084.70 = 75,102,978.28/x
  3. Step 3: Cross multiply
    80,267,797.48x = 120,452,084.70 × 75,102,978.28
  4. Step 4: Simplify right side
    80,267,797.48x = 9,046,310,301,004,820
  5. Step 5: Solve for x
    x = 9,046,310,301,004,820/80,267,797.48
  6. Step 6: Final answer
    x = 112,701,613.66

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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.