Home / 20,353,538.91-30,530,152.85-5,207,446.11

Finding the Fourth Proportional to 20,353,538.91, 30,530,152.85 and 5,207,446.11

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Solution

The fourth proportional to 20,353,538.91, 30,530,152.85 and 5,207,446.11 is: 7,811,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353,538.91 : 30,530,152.85 = 5,207,446.11 : x
  2. Step 2: Convert to fraction form
    20,353,538.91/30,530,152.85 = 5,207,446.11/x
  3. Step 3: Cross multiply
    20,353,538.91x = 30,530,152.85 × 5,207,446.11
  4. Step 4: Simplify right side
    20,353,538.91x = 158,984,125,670,400.69
  5. Step 5: Solve for x
    x = 158,984,125,670,400.69/20,353,538.91
  6. Step 6: Final answer
    x = 7,811,129.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.