Home / 12,088,512.30-18,132,768.45-10,972,486.20

Finding the Fourth Proportional to 12,088,512.30, 18,132,768.45 and 10,972,486.20

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Solution

The fourth proportional to 12,088,512.30, 18,132,768.45 and 10,972,486.20 is: 16,458,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,088,512.30 : 18,132,768.45 = 10,972,486.20 : x
  2. Step 2: Convert to fraction form
    12,088,512.30/18,132,768.45 = 10,972,486.20/x
  3. Step 3: Cross multiply
    12,088,512.30x = 18,132,768.45 × 10,972,486.20
  4. Step 4: Simplify right side
    12,088,512.30x = 198,961,551,585,420.38
  5. Step 5: Solve for x
    x = 198,961,551,585,420.38/12,088,512.30
  6. Step 6: Final answer
    x = 16,458,729.30

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Double scale
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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.