Home / 28,147,888.88-38,843,824.19-15,924,745.88

Finding the Fourth Proportional to 28,147,888.88, 38,843,824.19 and 15,924,745.88

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Solution

The fourth proportional to 28,147,888.88, 38,843,824.19 and 15,924,745.88 is: 21,976,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147,888.88 : 38,843,824.19 = 15,924,745.88 : x
  2. Step 2: Convert to fraction form
    28,147,888.88/38,843,824.19 = 15,924,745.88/x
  3. Step 3: Cross multiply
    28,147,888.88x = 38,843,824.19 × 15,924,745.88
  4. Step 4: Simplify right side
    28,147,888.88x = 618,578,028,959,304
  5. Step 5: Solve for x
    x = 618,578,028,959,304/28,147,888.88
  6. Step 6: Final answer
    x = 21,976,000.82

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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.