Home / 8,086,278.30-12,129,417.45-6,868,556.70

Finding the Fourth Proportional to 8,086,278.30, 12,129,417.45 and 6,868,556.70

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Solution

The fourth proportional to 8,086,278.30, 12,129,417.45 and 6,868,556.70 is: 10,302,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086,278.30 : 12,129,417.45 = 6,868,556.70 : x
  2. Step 2: Convert to fraction form
    8,086,278.30/12,129,417.45 = 6,868,556.70/x
  3. Step 3: Cross multiply
    8,086,278.30x = 12,129,417.45 × 6,868,556.70
  4. Step 4: Simplify right side
    8,086,278.30x = 83,311,591,493,294.41
  5. Step 5: Solve for x
    x = 83,311,591,493,294.41/8,086,278.30
  6. Step 6: Final answer
    x = 10,302,835.05

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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.