Home / 28,005,882.15-38,647,162.53-15,447,434.39

Finding the Fourth Proportional to 28,005,882.15, 38,647,162.53 and 15,447,434.39

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Solution

The fourth proportional to 28,005,882.15, 38,647,162.53 and 15,447,434.39 is: 21,316,932.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005,882.15 : 38,647,162.53 = 15,447,434.39 : x
  2. Step 2: Convert to fraction form
    28,005,882.15/38,647,162.53 = 15,447,434.39/x
  3. Step 3: Cross multiply
    28,005,882.15x = 38,647,162.53 × 15,447,434.39
  4. Step 4: Simplify right side
    28,005,882.15x = 596,999,507,541,841.50
  5. Step 5: Solve for x
    x = 596,999,507,541,841.50/28,005,882.15
  6. Step 6: Final answer
    x = 21,316,932.79

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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.