Home / 8,120,690.45-12,176,982.55-2,655,073.32

Finding the Fourth Proportional to 8,120,690.45, 12,176,982.55 and 2,655,073.32

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Solution

The fourth proportional to 8,120,690.45, 12,176,982.55 and 2,655,073.32 is: 3,981,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120,690.45 : 12,176,982.55 = 2,655,073.32 : x
  2. Step 2: Convert to fraction form
    8,120,690.45/12,176,982.55 = 2,655,073.32/x
  3. Step 3: Cross multiply
    8,120,690.45x = 12,176,982.55 × 2,655,073.32
  4. Step 4: Simplify right side
    8,120,690.45x = 32,330,781,458,113.97
  5. Step 5: Solve for x
    x = 32,330,781,458,113.97/8,120,690.45
  6. Step 6: Final answer
    x = 3,981,284.80

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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.