Home / 12,055,998.60-18,052,505.10-11,489,128.20

Finding the Fourth Proportional to 12,055,998.60, 18,052,505.10 and 11,489,128.20

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Solution

The fourth proportional to 12,055,998.60, 18,052,505.10 and 11,489,128.20 is: 17,203,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055,998.60 : 18,052,505.10 = 11,489,128.20 : x
  2. Step 2: Convert to fraction form
    12,055,998.60/18,052,505.10 = 11,489,128.20/x
  3. Step 3: Cross multiply
    12,055,998.60x = 18,052,505.10 × 11,489,128.20
  4. Step 4: Simplify right side
    12,055,998.60x = 207,407,545,425,053.81
  5. Step 5: Solve for x
    x = 207,407,545,425,053.81/12,055,998.60
  6. Step 6: Final answer
    x = 17,203,680.28

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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.