Home / 80,167,711.80-120,251,567.70-71,080,070.70

Finding the Fourth Proportional to 80,167,711.80, 120,251,567.70 and 71,080,070.70

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Solution

The fourth proportional to 80,167,711.80, 120,251,567.70 and 71,080,070.70 is: 106,620,106.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,167,711.80 : 120,251,567.70 = 71,080,070.70 : x
  2. Step 2: Convert to fraction form
    80,167,711.80/120,251,567.70 = 71,080,070.70/x
  3. Step 3: Cross multiply
    80,167,711.80x = 120,251,567.70 × 71,080,070.70
  4. Step 4: Simplify right side
    80,167,711.80x = 8,547,489,933,901,837
  5. Step 5: Solve for x
    x = 8,547,489,933,901,837/80,167,711.80
  6. Step 6: Final answer
    x = 106,620,106.05

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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.