Home / 12,126,021.40-18,189,032.10-6,061,689.10

Finding the Fourth Proportional to 12,126,021.40, 18,189,032.10 and 6,061,689.10

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Solution

The fourth proportional to 12,126,021.40, 18,189,032.10 and 6,061,689.10 is: 9,092,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,021.40 : 18,189,032.10 = 6,061,689.10 : x
  2. Step 2: Convert to fraction form
    12,126,021.40/18,189,032.10 = 6,061,689.10/x
  3. Step 3: Cross multiply
    12,126,021.40x = 18,189,032.10 × 6,061,689.10
  4. Step 4: Simplify right side
    12,126,021.40x = 110,256,257,620,120.11
  5. Step 5: Solve for x
    x = 110,256,257,620,120.11/12,126,021.40
  6. Step 6: Final answer
    x = 9,092,533.65

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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.