Home / 28,388,414.50-39,176,046.84-15,335,673.16

Finding the Fourth Proportional to 28,388,414.50, 39,176,046.84 and 15,335,673.16

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Solution

The fourth proportional to 28,388,414.50, 39,176,046.84 and 15,335,673.16 is: 21,163,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,388,414.50 : 39,176,046.84 = 15,335,673.16 : x
  2. Step 2: Convert to fraction form
    28,388,414.50/39,176,046.84 = 15,335,673.16/x
  3. Step 3: Cross multiply
    28,388,414.50x = 39,176,046.84 × 15,335,673.16
  4. Step 4: Simplify right side
    28,388,414.50x = 600,791,050,039,090.88
  5. Step 5: Solve for x
    x = 600,791,050,039,090.88/28,388,414.50
  6. Step 6: Final answer
    x = 21,163,247.78

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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.