Home / 891,595,363.20-1,337,393,044.80-478,346,841.60

Finding the Fourth Proportional to 891,595,363.20, 1,337,393,044.80 and 478,346,841.60

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Solution

The fourth proportional to 891,595,363.20, 1,337,393,044.80 and 478,346,841.60 is: 717,520,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,595,363.20 : 1,337,393,044.80 = 478,346,841.60 : x
  2. Step 2: Convert to fraction form
    891,595,363.20/1,337,393,044.80 = 478,346,841.60/x
  3. Step 3: Cross multiply
    891,595,363.20x = 1,337,393,044.80 × 478,346,841.60
  4. Step 4: Simplify right side
    891,595,363.20x = 639,737,738,957,887,360
  5. Step 5: Solve for x
    x = 639,737,738,957,887,360/891,595,363.20
  6. Step 6: Final answer
    x = 717,520,262.40

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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.