Home / 315,023,278.20-472,393,199.70-120,870,166.20

Finding the Fourth Proportional to 315,023,278.20, 472,393,199.70 and 120,870,166.20

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Solution

The fourth proportional to 315,023,278.20, 472,393,199.70 and 120,870,166.20 is: 181,250,874.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,023,278.20 : 472,393,199.70 = 120,870,166.20 : x
  2. Step 2: Convert to fraction form
    315,023,278.20/472,393,199.70 = 120,870,166.20/x
  3. Step 3: Cross multiply
    315,023,278.20x = 472,393,199.70 × 120,870,166.20
  4. Step 4: Simplify right side
    315,023,278.20x = 57,098,244,559,488,792
  5. Step 5: Solve for x
    x = 57,098,244,559,488,792/315,023,278.20
  6. Step 6: Final answer
    x = 181,250,874.18

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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.