Home / 78,718,191.92-108,670,433.45-48,958,432.38

Finding the Fourth Proportional to 78,718,191.92, 108,670,433.45 and 48,958,432.38

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Solution

The fourth proportional to 78,718,191.92, 108,670,433.45 and 48,958,432.38 is: 67,587,096.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,718,191.92 : 108,670,433.45 = 48,958,432.38 : x
  2. Step 2: Convert to fraction form
    78,718,191.92/108,670,433.45 = 48,958,432.38/x
  3. Step 3: Cross multiply
    78,718,191.92x = 108,670,433.45 × 48,958,432.38
  4. Step 4: Simplify right side
    78,718,191.92x = 5,320,334,068,171,593
  5. Step 5: Solve for x
    x = 5,320,334,068,171,593/78,718,191.92
  6. Step 6: Final answer
    x = 67,587,096.94

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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.