Home / 20,559,842-28,373,204.04-11,391,626.96

Finding the Fourth Proportional to 20,559,842, 28,373,204.04 and 11,391,626.96

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Solution

The fourth proportional to 20,559,842, 28,373,204.04 and 11,391,626.96 is: 15,720,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559,842 : 28,373,204.04 = 11,391,626.96 : x
  2. Step 2: Convert to fraction form
    20,559,842/28,373,204.04 = 11,391,626.96/x
  3. Step 3: Cross multiply
    20,559,842x = 28,373,204.04 × 11,391,626.96
  4. Step 4: Simplify right side
    20,559,842x = 323,216,956,083,644.94
  5. Step 5: Solve for x
    x = 323,216,956,083,644.94/20,559,842
  6. Step 6: Final answer
    x = 15,720,789.88

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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.