Home / 28,479,743.16-39,302,234.27-15,427,002.09

Finding the Fourth Proportional to 28,479,743.16, 39,302,234.27 and 15,427,002.09

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Solution

The fourth proportional to 28,479,743.16, 39,302,234.27 and 15,427,002.09 is: 21,289,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,743.16 : 39,302,234.27 = 15,427,002.09 : x
  2. Step 2: Convert to fraction form
    28,479,743.16/39,302,234.27 = 15,427,002.09/x
  3. Step 3: Cross multiply
    28,479,743.16x = 39,302,234.27 × 15,427,002.09
  4. Step 4: Simplify right side
    28,479,743.16x = 606,315,650,147,824.62
  5. Step 5: Solve for x
    x = 606,315,650,147,824.62/28,479,743.16
  6. Step 6: Final answer
    x = 21,289,365.10

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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.