Home / 78,432,279.96-108,234,994.14-43,624,221.24

Finding the Fourth Proportional to 78,432,279.96, 108,234,994.14 and 43,624,221.24

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Solution

The fourth proportional to 78,432,279.96, 108,234,994.14 and 43,624,221.24 is: 60,200,561.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,432,279.96 : 108,234,994.14 = 43,624,221.24 : x
  2. Step 2: Convert to fraction form
    78,432,279.96/108,234,994.14 = 43,624,221.24/x
  3. Step 3: Cross multiply
    78,432,279.96x = 108,234,994.14 × 43,624,221.24
  4. Step 4: Simplify right side
    78,432,279.96x = 4,721,667,330,273,464
  5. Step 5: Solve for x
    x = 4,721,667,330,273,464/78,432,279.96
  6. Step 6: Final answer
    x = 60,200,561.97

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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.