Home / 679,945,310.70-1,019,917,966.05-531,992,136.30

Finding the Fourth Proportional to 679,945,310.70, 1,019,917,966.05 and 531,992,136.30

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Solution

The fourth proportional to 679,945,310.70, 1,019,917,966.05 and 531,992,136.30 is: 797,988,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,945,310.70 : 1,019,917,966.05 = 531,992,136.30 : x
  2. Step 2: Convert to fraction form
    679,945,310.70/1,019,917,966.05 = 531,992,136.30/x
  3. Step 3: Cross multiply
    679,945,310.70x = 1,019,917,966.05 × 531,992,136.30
  4. Step 4: Simplify right side
    679,945,310.70x = 542,588,337,609,690,368
  5. Step 5: Solve for x
    x = 542,588,337,609,690,368/679,945,310.70
  6. Step 6: Final answer
    x = 797,988,204.45

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Double scale
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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.