Home / 472,393,324.80-708,589,987.20-432,216,385.20

Finding the Fourth Proportional to 472,393,324.80, 708,589,987.20 and 432,216,385.20

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Solution

The fourth proportional to 472,393,324.80, 708,589,987.20 and 432,216,385.20 is: 648,324,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,324.80 : 708,589,987.20 = 432,216,385.20 : x
  2. Step 2: Convert to fraction form
    472,393,324.80/708,589,987.20 = 432,216,385.20/x
  3. Step 3: Cross multiply
    472,393,324.80x = 708,589,987.20 × 432,216,385.20
  4. Step 4: Simplify right side
    472,393,324.80x = 306,264,202,856,498,304
  5. Step 5: Solve for x
    x = 306,264,202,856,498,304/472,393,324.80
  6. Step 6: Final answer
    x = 648,324,577.80

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Similar ratio
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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.