Home / 513,217,664.40-769,826,496.60-503,013,997.20

Finding the Fourth Proportional to 513,217,664.40, 769,826,496.60 and 503,013,997.20

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Solution

The fourth proportional to 513,217,664.40, 769,826,496.60 and 503,013,997.20 is: 754,520,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,217,664.40 : 769,826,496.60 = 503,013,997.20 : x
  2. Step 2: Convert to fraction form
    513,217,664.40/769,826,496.60 = 503,013,997.20/x
  3. Step 3: Cross multiply
    513,217,664.40x = 769,826,496.60 × 503,013,997.20
  4. Step 4: Simplify right side
    513,217,664.40x = 387,233,503,205,238,208
  5. Step 5: Solve for x
    x = 387,233,503,205,238,208/513,217,664.40
  6. Step 6: Final answer
    x = 754,520,995.80

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Half scale
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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.