Home / 579,420,001.70-869,130,002.55-515,930,516.90

Finding the Fourth Proportional to 579,420,001.70, 869,130,002.55 and 515,930,516.90

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Solution

The fourth proportional to 579,420,001.70, 869,130,002.55 and 515,930,516.90 is: 773,895,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,420,001.70 : 869,130,002.55 = 515,930,516.90 : x
  2. Step 2: Convert to fraction form
    579,420,001.70/869,130,002.55 = 515,930,516.90/x
  3. Step 3: Cross multiply
    579,420,001.70x = 869,130,002.55 × 515,930,516.90
  4. Step 4: Simplify right side
    579,420,001.70x = 448,410,691,468,919,744
  5. Step 5: Solve for x
    x = 448,410,691,468,919,744/579,420,001.70
  6. Step 6: Final answer
    x = 773,895,775.35

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Double scale
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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.