Home / 20,817,608.22-28,728,306.29-11,398,994.91

Finding the Fourth Proportional to 20,817,608.22, 28,728,306.29 and 11,398,994.91

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Solution

The fourth proportional to 20,817,608.22, 28,728,306.29 and 11,398,994.91 is: 15,730,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817,608.22 : 28,728,306.29 = 11,398,994.91 : x
  2. Step 2: Convert to fraction form
    20,817,608.22/28,728,306.29 = 11,398,994.91/x
  3. Step 3: Cross multiply
    20,817,608.22x = 28,728,306.29 × 11,398,994.91
  4. Step 4: Simplify right side
    20,817,608.22x = 327,473,817,201,128.50
  5. Step 5: Solve for x
    x = 327,473,817,201,128.50/20,817,608.22
  6. Step 6: Final answer
    x = 15,730,616.78

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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.