Home / 521,520,095.10-782,280,142.65-513,867,344.70

Finding the Fourth Proportional to 521,520,095.10, 782,280,142.65 and 513,867,344.70

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Solution

The fourth proportional to 521,520,095.10, 782,280,142.65 and 513,867,344.70 is: 770,801,017.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,095.10 : 782,280,142.65 = 513,867,344.70 : x
  2. Step 2: Convert to fraction form
    521,520,095.10/782,280,142.65 = 513,867,344.70/x
  3. Step 3: Cross multiply
    521,520,095.10x = 782,280,142.65 × 513,867,344.70
  4. Step 4: Simplify right side
    521,520,095.10x = 401,988,219,715,092,672
  5. Step 5: Solve for x
    x = 401,988,219,715,092,672/521,520,095.10
  6. Step 6: Final answer
    x = 770,801,017.05

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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.