Home / 78,388,162.33-108,181,715.25-47,027,385.85

Finding the Fourth Proportional to 78,388,162.33, 108,181,715.25 and 47,027,385.85

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Solution

The fourth proportional to 78,388,162.33, 108,181,715.25 and 47,027,385.85 is: 64,901,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,388,162.33 : 108,181,715.25 = 47,027,385.85 : x
  2. Step 2: Convert to fraction form
    78,388,162.33/108,181,715.25 = 47,027,385.85/x
  3. Step 3: Cross multiply
    78,388,162.33x = 108,181,715.25 × 47,027,385.85
  4. Step 4: Simplify right side
    78,388,162.33x = 5,087,503,264,976,579
  5. Step 5: Solve for x
    x = 5,087,503,264,976,579/78,388,162.33
  6. Step 6: Final answer
    x = 64,901,422.79

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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.