Home / 8,086,312.80-12,129,469.20-6,868,591.20

Finding the Fourth Proportional to 8,086,312.80, 12,129,469.20 and 6,868,591.20

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Solution

The fourth proportional to 8,086,312.80, 12,129,469.20 and 6,868,591.20 is: 10,302,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086,312.80 : 12,129,469.20 = 6,868,591.20 : x
  2. Step 2: Convert to fraction form
    8,086,312.80/12,129,469.20 = 6,868,591.20/x
  3. Step 3: Cross multiply
    8,086,312.80x = 12,129,469.20 × 6,868,591.20
  4. Step 4: Simplify right side
    8,086,312.80x = 83,312,365,407,791.03
  5. Step 5: Solve for x
    x = 83,312,365,407,791.03/8,086,312.80
  6. Step 6: Final answer
    x = 10,302,886.80

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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.