Home / 31,135,681.56-42,969,896.46-17,387,301.72

Finding the Fourth Proportional to 31,135,681.56, 42,969,896.46 and 17,387,301.72

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Solution

The fourth proportional to 31,135,681.56, 42,969,896.46 and 17,387,301.72 is: 23,995,959.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,135,681.56 : 42,969,896.46 = 17,387,301.72 : x
  2. Step 2: Convert to fraction form
    31,135,681.56/42,969,896.46 = 17,387,301.72/x
  3. Step 3: Cross multiply
    31,135,681.56x = 42,969,896.46 × 17,387,301.72
  4. Step 4: Simplify right side
    31,135,681.56x = 747,130,554,627,179.88
  5. Step 5: Solve for x
    x = 747,130,554,627,179.88/31,135,681.56
  6. Step 6: Final answer
    x = 23,995,959.53

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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.