Home / 80,851,462.70-121,282,442.85-42,587,710.70

Finding the Fourth Proportional to 80,851,462.70, 121,282,442.85 and 42,587,710.70

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Solution

The fourth proportional to 80,851,462.70, 121,282,442.85 and 42,587,710.70 is: 63,884,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,851,462.70 : 121,282,442.85 = 42,587,710.70 : x
  2. Step 2: Convert to fraction form
    80,851,462.70/121,282,442.85 = 42,587,710.70/x
  3. Step 3: Cross multiply
    80,851,462.70x = 121,282,442.85 × 42,587,710.70
  4. Step 4: Simplify right side
    80,851,462.70x = 5,165,141,589,085,084
  5. Step 5: Solve for x
    x = 5,165,141,589,085,084/80,851,462.70
  6. Step 6: Final answer
    x = 63,884,330.80

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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.