Home / 18,169,001.81-27,259,407.61-12,128,289.11

Finding the Fourth Proportional to 18,169,001.81, 27,259,407.61 and 12,128,289.11

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Solution

The fourth proportional to 18,169,001.81, 27,259,407.61 and 12,128,289.11 is: 18,196,375.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169,001.81 : 27,259,407.61 = 12,128,289.11 : x
  2. Step 2: Convert to fraction form
    18,169,001.81/27,259,407.61 = 12,128,289.11/x
  3. Step 3: Cross multiply
    18,169,001.81x = 27,259,407.61 × 12,128,289.11
  4. Step 4: Simplify right side
    18,169,001.81x = 330,609,976,618,574.94
  5. Step 5: Solve for x
    x = 330,609,976,618,574.94/18,169,001.81
  6. Step 6: Final answer
    x = 18,196,375.34

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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.