Home / 81,280,180.89-112,137,693.17-48,215,102.85

Finding the Fourth Proportional to 81,280,180.89, 112,137,693.17 and 48,215,102.85

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Solution

The fourth proportional to 81,280,180.89, 112,137,693.17 and 48,215,102.85 is: 66,519,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,280,180.89 : 112,137,693.17 = 48,215,102.85 : x
  2. Step 2: Convert to fraction form
    81,280,180.89/112,137,693.17 = 48,215,102.85/x
  3. Step 3: Cross multiply
    81,280,180.89x = 112,137,693.17 × 48,215,102.85
  4. Step 4: Simplify right side
    81,280,180.89x = 5,406,730,409,312,218
  5. Step 5: Solve for x
    x = 5,406,730,409,312,218/81,280,180.89
  6. Step 6: Final answer
    x = 66,519,665.07

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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.