Home / 31,482,628.73-43,422,901.17-20,866,819.49

Finding the Fourth Proportional to 31,482,628.73, 43,422,901.17 and 20,866,819.49

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Solution

The fourth proportional to 31,482,628.73, 43,422,901.17 and 20,866,819.49 is: 28,780,882.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,482,628.73 : 43,422,901.17 = 20,866,819.49 : x
  2. Step 2: Convert to fraction form
    31,482,628.73/43,422,901.17 = 20,866,819.49/x
  3. Step 3: Cross multiply
    31,482,628.73x = 43,422,901.17 × 20,866,819.49
  4. Step 4: Simplify right side
    31,482,628.73x = 906,097,840,446,499.75
  5. Step 5: Solve for x
    x = 906,097,840,446,499.75/31,482,628.73
  6. Step 6: Final answer
    x = 28,780,882.57

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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.