Home / 28,715,288.97-39,627,222.12-15,662,828.28

Finding the Fourth Proportional to 28,715,288.97, 39,627,222.12 and 15,662,828.28

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Solution

The fourth proportional to 28,715,288.97, 39,627,222.12 and 15,662,828.28 is: 21,614,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715,288.97 : 39,627,222.12 = 15,662,828.28 : x
  2. Step 2: Convert to fraction form
    28,715,288.97/39,627,222.12 = 15,662,828.28/x
  3. Step 3: Cross multiply
    28,715,288.97x = 39,627,222.12 × 15,662,828.28
  4. Step 4: Simplify right side
    28,715,288.97x = 620,674,375,278,977.50
  5. Step 5: Solve for x
    x = 620,674,375,278,977.50/28,715,288.97
  6. Step 6: Final answer
    x = 21,614,770.30

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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.