Home / 131,422,264.38-181,418,567.52-81,887,112.06

Finding the Fourth Proportional to 131,422,264.38, 181,418,567.52 and 81,887,112.06

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Solution

The fourth proportional to 131,422,264.38, 181,418,567.52 and 81,887,112.06 is: 113,039,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,422,264.38 : 181,418,567.52 = 81,887,112.06 : x
  2. Step 2: Convert to fraction form
    131,422,264.38/181,418,567.52 = 81,887,112.06/x
  3. Step 3: Cross multiply
    131,422,264.38x = 181,418,567.52 × 81,887,112.06
  4. Step 4: Simplify right side
    131,422,264.38x = 14,855,842,568,274,918
  5. Step 5: Solve for x
    x = 14,855,842,568,274,918/131,422,264.38
  6. Step 6: Final answer
    x = 113,039,009.32

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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.