Home / 18,650,870-27,975,020.88-11,463,513.20

Finding the Fourth Proportional to 18,650,870, 27,975,020.88 and 11,463,513.20

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Solution

The fourth proportional to 18,650,870, 27,975,020.88 and 11,463,513.20 is: 17,194,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650,870 : 27,975,020.88 = 11,463,513.20 : x
  2. Step 2: Convert to fraction form
    18,650,870/27,975,020.88 = 11,463,513.20/x
  3. Step 3: Cross multiply
    18,650,870x = 27,975,020.88 × 11,463,513.20
  4. Step 4: Simplify right side
    18,650,870x = 320,692,021,128,155.56
  5. Step 5: Solve for x
    x = 320,692,021,128,155.56/18,650,870
  6. Step 6: Final answer
    x = 17,194,480.53

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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.