Home / 78,419,353.96-108,215,369.58-43,134,920.07

Finding the Fourth Proportional to 78,419,353.96, 108,215,369.58 and 43,134,920.07

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Solution

The fourth proportional to 78,419,353.96, 108,215,369.58 and 43,134,920.07 is: 59,524,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,419,353.96 : 108,215,369.58 = 43,134,920.07 : x
  2. Step 2: Convert to fraction form
    78,419,353.96/108,215,369.58 = 43,134,920.07/x
  3. Step 3: Cross multiply
    78,419,353.96x = 108,215,369.58 × 43,134,920.07
  4. Step 4: Simplify right side
    78,419,353.96x = 4,667,861,317,178,809
  5. Step 5: Solve for x
    x = 4,667,861,317,178,809/78,419,353.96
  6. Step 6: Final answer
    x = 59,524,353.13

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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.