Home / 472,392,772.80-708,589,159.20-326,518,123.20

Finding the Fourth Proportional to 472,392,772.80, 708,589,159.20 and 326,518,123.20

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Solution

The fourth proportional to 472,392,772.80, 708,589,159.20 and 326,518,123.20 is: 489,777,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,772.80 : 708,589,159.20 = 326,518,123.20 : x
  2. Step 2: Convert to fraction form
    472,392,772.80/708,589,159.20 = 326,518,123.20/x
  3. Step 3: Cross multiply
    472,392,772.80x = 708,589,159.20 × 326,518,123.20
  4. Step 4: Simplify right side
    472,392,772.80x = 231,367,202,381,850,016
  5. Step 5: Solve for x
    x = 231,367,202,381,850,016/472,392,772.80
  6. Step 6: Final answer
    x = 489,777,184.80

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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.