Home / 78,499,183.10-108,326,892.75-43,216,635.97

Finding the Fourth Proportional to 78,499,183.10, 108,326,892.75 and 43,216,635.97

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Solution

The fourth proportional to 78,499,183.10, 108,326,892.75 and 43,216,635.97 is: 59,637,867.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,499,183.10 : 108,326,892.75 = 43,216,635.97 : x
  2. Step 2: Convert to fraction form
    78,499,183.10/108,326,892.75 = 43,216,635.97/x
  3. Step 3: Cross multiply
    78,499,183.10x = 108,326,892.75 × 43,216,635.97
  4. Step 4: Simplify right side
    78,499,183.10x = 4,681,523,889,101,990
  5. Step 5: Solve for x
    x = 4,681,523,889,101,990/78,499,183.10
  6. Step 6: Final answer
    x = 59,637,867.61

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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.