Home / 28,471,621.56-39,290,642.11-15,418,581.76

Finding the Fourth Proportional to 28,471,621.56, 39,290,642.11 and 15,418,581.76

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Solution

The fourth proportional to 28,471,621.56, 39,290,642.11 and 15,418,581.76 is: 21,277,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,621.56 : 39,290,642.11 = 15,418,581.76 : x
  2. Step 2: Convert to fraction form
    28,471,621.56/39,290,642.11 = 15,418,581.76/x
  3. Step 3: Cross multiply
    28,471,621.56x = 39,290,642.11 × 15,418,581.76
  4. Step 4: Simplify right side
    28,471,621.56x = 605,805,977,775,933.88
  5. Step 5: Solve for x
    x = 605,805,977,775,933.88/28,471,621.56
  6. Step 6: Final answer
    x = 21,277,536.88

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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.