Home / 28,427,134.56-39,229,447.32-15,374,389.92

Finding the Fourth Proportional to 28,427,134.56, 39,229,447.32 and 15,374,389.92

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Solution

The fourth proportional to 28,427,134.56, 39,229,447.32 and 15,374,389.92 is: 21,216,658.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427,134.56 : 39,229,447.32 = 15,374,389.92 : x
  2. Step 2: Convert to fraction form
    28,427,134.56/39,229,447.32 = 15,374,389.92/x
  3. Step 3: Cross multiply
    28,427,134.56x = 39,229,447.32 × 15,374,389.92
  4. Step 4: Simplify right side
    28,427,134.56x = 603,128,819,443,779
  5. Step 5: Solve for x
    x = 603,128,819,443,779/28,427,134.56
  6. Step 6: Final answer
    x = 21,216,658.97

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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.