Home / 28,517,403.60-39,354,025.92-15,464,658.64

Finding the Fourth Proportional to 28,517,403.60, 39,354,025.92 and 15,464,658.64

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Solution

The fourth proportional to 28,517,403.60, 39,354,025.92 and 15,464,658.64 is: 21,341,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517,403.60 : 39,354,025.92 = 15,464,658.64 : x
  2. Step 2: Convert to fraction form
    28,517,403.60/39,354,025.92 = 15,464,658.64/x
  3. Step 3: Cross multiply
    28,517,403.60x = 39,354,025.92 × 15,464,658.64
  4. Step 4: Simplify right side
    28,517,403.60x = 608,596,576,962,512
  5. Step 5: Solve for x
    x = 608,596,576,962,512/28,517,403.60
  6. Step 6: Final answer
    x = 21,341,233.78

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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.