Home / 87,547,404.30-131,321,106.45-80,493,017.10

Finding the Fourth Proportional to 87,547,404.30, 131,321,106.45 and 80,493,017.10

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Solution

The fourth proportional to 87,547,404.30, 131,321,106.45 and 80,493,017.10 is: 120,739,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,547,404.30 : 131,321,106.45 = 80,493,017.10 : x
  2. Step 2: Convert to fraction form
    87,547,404.30/131,321,106.45 = 80,493,017.10/x
  3. Step 3: Cross multiply
    87,547,404.30x = 131,321,106.45 × 80,493,017.10
  4. Step 4: Simplify right side
    87,547,404.30x = 10,570,432,067,070,770
  5. Step 5: Solve for x
    x = 10,570,432,067,070,770/87,547,404.30
  6. Step 6: Final answer
    x = 120,739,525.65

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Double scale
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Similar ratio
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1.5x scale

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.