Home / 315,023,393.20-472,393,372.20-120,870,281.20

Finding the Fourth Proportional to 315,023,393.20, 472,393,372.20 and 120,870,281.20

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Solution

The fourth proportional to 315,023,393.20, 472,393,372.20 and 120,870,281.20 is: 181,251,046.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,023,393.20 : 472,393,372.20 = 120,870,281.20 : x
  2. Step 2: Convert to fraction form
    315,023,393.20/472,393,372.20 = 120,870,281.20/x
  3. Step 3: Cross multiply
    315,023,393.20x = 472,393,372.20 × 120,870,281.20
  4. Step 4: Simplify right side
    315,023,393.20x = 57,098,319,734,830,264
  5. Step 5: Solve for x
    x = 57,098,319,734,830,264/315,023,393.20
  6. Step 6: Final answer
    x = 181,251,046.64

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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.