Home / 18,989,139.47-26,204,867.62-10,287,249.83

Finding the Fourth Proportional to 18,989,139.47, 26,204,867.62 and 10,287,249.83

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Solution

The fourth proportional to 18,989,139.47, 26,204,867.62 and 10,287,249.83 is: 14,196,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989,139.47 : 26,204,867.62 = 10,287,249.83 : x
  2. Step 2: Convert to fraction form
    18,989,139.47/26,204,867.62 = 10,287,249.83/x
  3. Step 3: Cross multiply
    18,989,139.47x = 26,204,867.62 × 10,287,249.83
  4. Step 4: Simplify right side
    18,989,139.47x = 269,576,019,910,543.28
  5. Step 5: Solve for x
    x = 269,576,019,910,543.28/18,989,139.47
  6. Step 6: Final answer
    x = 14,196,326.30

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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.