Home / 28,438,617-39,245,317.38-15,561,561

Finding the Fourth Proportional to 28,438,617, 39,245,317.38 and 15,561,561

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Solution

The fourth proportional to 28,438,617, 39,245,317.38 and 15,561,561 is: 21,474,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438,617 : 39,245,317.38 = 15,561,561 : x
  2. Step 2: Convert to fraction form
    28,438,617/39,245,317.38 = 15,561,561/x
  3. Step 3: Cross multiply
    28,438,617x = 39,245,317.38 × 15,561,561
  4. Step 4: Simplify right side
    28,438,617x = 610,718,400,373,230.25
  5. Step 5: Solve for x
    x = 610,718,400,373,230.25/28,438,617
  6. Step 6: Final answer
    x = 21,474,968.36

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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.