Home / 8,086,139.40-12,129,209.10-4,307,003.40

Finding the Fourth Proportional to 8,086,139.40, 12,129,209.10 and 4,307,003.40

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Solution

The fourth proportional to 8,086,139.40, 12,129,209.10 and 4,307,003.40 is: 6,460,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086,139.40 : 12,129,209.10 = 4,307,003.40 : x
  2. Step 2: Convert to fraction form
    8,086,139.40/12,129,209.10 = 4,307,003.40/x
  3. Step 3: Cross multiply
    8,086,139.40x = 12,129,209.10 × 4,307,003.40
  4. Step 4: Simplify right side
    8,086,139.40x = 52,240,544,833,010.95
  5. Step 5: Solve for x
    x = 52,240,544,833,010.95/8,086,139.40
  6. Step 6: Final answer
    x = 6,460,505.10

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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.