Home / 80,176,025.06-120,309,531.86-43,287,423.12

Finding the Fourth Proportional to 80,176,025.06, 120,309,531.86 and 43,287,423.12

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Solution

The fourth proportional to 80,176,025.06, 120,309,531.86 and 43,287,423.12 is: 64,955,697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,176,025.06 : 120,309,531.86 = 43,287,423.12 : x
  2. Step 2: Convert to fraction form
    80,176,025.06/120,309,531.86 = 43,287,423.12/x
  3. Step 3: Cross multiply
    80,176,025.06x = 120,309,531.86 × 43,287,423.12
  4. Step 4: Simplify right side
    80,176,025.06x = 5,207,889,610,992,940
  5. Step 5: Solve for x
    x = 5,207,889,610,992,940/80,176,025.06
  6. Step 6: Final answer
    x = 64,955,697.26

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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.