Home / 80,176,023.06-120,309,528.86-43,287,421.12

Finding the Fourth Proportional to 80,176,023.06, 120,309,528.86 and 43,287,421.12

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Solution

The fourth proportional to 80,176,023.06, 120,309,528.86 and 43,287,421.12 is: 64,955,694.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,176,023.06 : 120,309,528.86 = 43,287,421.12 : x
  2. Step 2: Convert to fraction form
    80,176,023.06/120,309,528.86 = 43,287,421.12/x
  3. Step 3: Cross multiply
    80,176,023.06x = 120,309,528.86 × 43,287,421.12
  4. Step 4: Simplify right side
    80,176,023.06x = 5,207,889,240,511,613
  5. Step 5: Solve for x
    x = 5,207,889,240,511,613/80,176,023.06
  6. Step 6: Final answer
    x = 64,955,694.26

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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.