Home / 77,876,799.42-107,469,112.44-42,595,618.20

Finding the Fourth Proportional to 77,876,799.42, 107,469,112.44 and 42,595,618.20

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Solution

The fourth proportional to 77,876,799.42, 107,469,112.44 and 42,595,618.20 is: 58,781,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,876,799.42 : 107,469,112.44 = 42,595,618.20 : x
  2. Step 2: Convert to fraction form
    77,876,799.42/107,469,112.44 = 42,595,618.20/x
  3. Step 3: Cross multiply
    77,876,799.42x = 107,469,112.44 × 42,595,618.20
  4. Step 4: Simplify right side
    77,876,799.42x = 4,577,713,281,787,111
  5. Step 5: Solve for x
    x = 4,577,713,281,787,111/77,876,799.42
  6. Step 6: Final answer
    x = 58,781,476.84

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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.