Home / 80,207,197.12-120,103,594.08-55,356,289.84

Finding the Fourth Proportional to 80,207,197.12, 120,103,594.08 and 55,356,289.84

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Solution

The fourth proportional to 80,207,197.12, 120,103,594.08 and 55,356,289.84 is: 82,891,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,207,197.12 : 120,103,594.08 = 55,356,289.84 : x
  2. Step 2: Convert to fraction form
    80,207,197.12/120,103,594.08 = 55,356,289.84/x
  3. Step 3: Cross multiply
    80,207,197.12x = 120,103,594.08 × 55,356,289.84
  4. Step 4: Simplify right side
    80,207,197.12x = 6,648,489,364,718,188
  5. Step 5: Solve for x
    x = 6,648,489,364,718,188/80,207,197.12
  6. Step 6: Final answer
    x = 82,891,431.24

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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.