Home / 80,984,015.68-111,656,566.28-67,591,906.56

Finding the Fourth Proportional to 80,984,015.68, 111,656,566.28 and 67,591,906.56

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Solution

The fourth proportional to 80,984,015.68, 111,656,566.28 and 67,591,906.56 is: 93,192,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,984,015.68 : 111,656,566.28 = 67,591,906.56 : x
  2. Step 2: Convert to fraction form
    80,984,015.68/111,656,566.28 = 67,591,906.56/x
  3. Step 3: Cross multiply
    80,984,015.68x = 111,656,566.28 × 67,591,906.56
  4. Step 4: Simplify right side
    80,984,015.68x = 7,547,080,194,808,207
  5. Step 5: Solve for x
    x = 7,547,080,194,808,207/80,984,015.68
  6. Step 6: Final answer
    x = 93,192,219.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.