Home / 8,083,612.80-12,125,419.20-7,605,315.90

Finding the Fourth Proportional to 8,083,612.80, 12,125,419.20 and 7,605,315.90

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Solution

The fourth proportional to 8,083,612.80, 12,125,419.20 and 7,605,315.90 is: 11,407,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083,612.80 : 12,125,419.20 = 7,605,315.90 : x
  2. Step 2: Convert to fraction form
    8,083,612.80/12,125,419.20 = 7,605,315.90/x
  3. Step 3: Cross multiply
    8,083,612.80x = 12,125,419.20 × 7,605,315.90
  4. Step 4: Simplify right side
    8,083,612.80x = 92,217,643,435,925.28
  5. Step 5: Solve for x
    x = 92,217,643,435,925.28/8,083,612.80
  6. Step 6: Final answer
    x = 11,407,973.85

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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.