Home / 20,101,143.78-27,744,505.47-11,404,407.06

Finding the Fourth Proportional to 20,101,143.78, 27,744,505.47 and 11,404,407.06

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Solution

The fourth proportional to 20,101,143.78, 27,744,505.47 and 11,404,407.06 is: 15,740,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,143.78 : 27,744,505.47 = 11,404,407.06 : x
  2. Step 2: Convert to fraction form
    20,101,143.78/27,744,505.47 = 11,404,407.06/x
  3. Step 3: Cross multiply
    20,101,143.78x = 27,744,505.47 × 11,404,407.06
  4. Step 4: Simplify right side
    20,101,143.78x = 316,409,634,058,276.62
  5. Step 5: Solve for x
    x = 316,409,634,058,276.62/20,101,143.78
  6. Step 6: Final answer
    x = 15,740,877.11

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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.