Home / 487,156,221.20-730,734,331.80-383,844,090.80

Finding the Fourth Proportional to 487,156,221.20, 730,734,331.80 and 383,844,090.80

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Solution

The fourth proportional to 487,156,221.20, 730,734,331.80 and 383,844,090.80 is: 575,766,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,156,221.20 : 730,734,331.80 = 383,844,090.80 : x
  2. Step 2: Convert to fraction form
    487,156,221.20/730,734,331.80 = 383,844,090.80/x
  3. Step 3: Cross multiply
    487,156,221.20x = 730,734,331.80 × 383,844,090.80
  4. Step 4: Simplify right side
    487,156,221.20x = 280,488,055,206,116,512
  5. Step 5: Solve for x
    x = 280,488,055,206,116,512/487,156,221.20
  6. Step 6: Final answer
    x = 575,766,136.20

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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.