Home / 80,341,710.30-120,512,565.45-42,014,972.70

Finding the Fourth Proportional to 80,341,710.30, 120,512,565.45 and 42,014,972.70

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Solution

The fourth proportional to 80,341,710.30, 120,512,565.45 and 42,014,972.70 is: 63,022,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,341,710.30 : 120,512,565.45 = 42,014,972.70 : x
  2. Step 2: Convert to fraction form
    80,341,710.30/120,512,565.45 = 42,014,972.70/x
  3. Step 3: Cross multiply
    80,341,710.30x = 120,512,565.45 × 42,014,972.70
  4. Step 4: Simplify right side
    80,341,710.30x = 5,063,332,147,388,714
  5. Step 5: Solve for x
    x = 5,063,332,147,388,714/80,341,710.30
  6. Step 6: Final answer
    x = 63,022,459.05

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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.