Home / 128,304,544.60-192,456,816.90-120,746,272.60

Finding the Fourth Proportional to 128,304,544.60, 192,456,816.90 and 120,746,272.60

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Solution

The fourth proportional to 128,304,544.60, 192,456,816.90 and 120,746,272.60 is: 181,119,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,544.60 : 192,456,816.90 = 120,746,272.60 : x
  2. Step 2: Convert to fraction form
    128,304,544.60/192,456,816.90 = 120,746,272.60/x
  3. Step 3: Cross multiply
    128,304,544.60x = 192,456,816.90 × 120,746,272.60
  4. Step 4: Simplify right side
    128,304,544.60x = 23,238,443,277,135,688
  5. Step 5: Solve for x
    x = 23,238,443,277,135,688/128,304,544.60
  6. Step 6: Final answer
    x = 181,119,408.90

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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.