Home / 18,372,919.78-25,354,428.10-10,112,805.46

Finding the Fourth Proportional to 18,372,919.78, 25,354,428.10 and 10,112,805.46

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Solution

The fourth proportional to 18,372,919.78, 25,354,428.10 and 10,112,805.46 is: 13,955,560.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,919.78 : 25,354,428.10 = 10,112,805.46 : x
  2. Step 2: Convert to fraction form
    18,372,919.78/25,354,428.10 = 10,112,805.46/x
  3. Step 3: Cross multiply
    18,372,919.78x = 25,354,428.10 × 10,112,805.46
  4. Step 4: Simplify right side
    18,372,919.78x = 256,404,398,924,857.47
  5. Step 5: Solve for x
    x = 256,404,398,924,857.47/18,372,919.78
  6. Step 6: Final answer
    x = 13,955,560.79

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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.