Home / 15,105,278.97-20,828,789.60-10,201,988.30

Finding the Fourth Proportional to 15,105,278.97, 20,828,789.60 and 10,201,988.30

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Solution

The fourth proportional to 15,105,278.97, 20,828,789.60 and 10,201,988.30 is: 14,067,603.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105,278.97 : 20,828,789.60 = 10,201,988.30 : x
  2. Step 2: Convert to fraction form
    15,105,278.97/20,828,789.60 = 10,201,988.30/x
  3. Step 3: Cross multiply
    15,105,278.97x = 20,828,789.60 × 10,201,988.30
  4. Step 4: Simplify right side
    15,105,278.97x = 212,495,067,802,361.72
  5. Step 5: Solve for x
    x = 212,495,067,802,361.72/15,105,278.97
  6. Step 6: Final answer
    x = 14,067,603.00

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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.