Home / 10,991,999.20-16,487,998.80-9,982,261.30

Finding the Fourth Proportional to 10,991,999.20, 16,487,998.80 and 9,982,261.30

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Solution

The fourth proportional to 10,991,999.20, 16,487,998.80 and 9,982,261.30 is: 14,973,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991,999.20 : 16,487,998.80 = 9,982,261.30 : x
  2. Step 2: Convert to fraction form
    10,991,999.20/16,487,998.80 = 9,982,261.30/x
  3. Step 3: Cross multiply
    10,991,999.20x = 16,487,998.80 × 9,982,261.30
  4. Step 4: Simplify right side
    10,991,999.20x = 164,587,512,335,686.47
  5. Step 5: Solve for x
    x = 164,587,512,335,686.47/10,991,999.20
  6. Step 6: Final answer
    x = 14,973,391.95

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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.