Home / 809,695,008.10-1,214,542,512.15-503,584,992.10

Finding the Fourth Proportional to 809,695,008.10, 1,214,542,512.15 and 503,584,992.10

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Solution

The fourth proportional to 809,695,008.10, 1,214,542,512.15 and 503,584,992.10 is: 755,377,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,695,008.10 : 1,214,542,512.15 = 503,584,992.10 : x
  2. Step 2: Convert to fraction form
    809,695,008.10/1,214,542,512.15 = 503,584,992.10/x
  3. Step 3: Cross multiply
    809,695,008.10x = 1,214,542,512.15 × 503,584,992.10
  4. Step 4: Simplify right side
    809,695,008.10x = 611,625,381,386,172,032
  5. Step 5: Solve for x
    x = 611,625,381,386,172,032/809,695,008.10
  6. Step 6: Final answer
    x = 755,377,488.15

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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.