Home / 18,731,738.38-28,097,207.42-8,634,359.38

Finding the Fourth Proportional to 18,731,738.38, 28,097,207.42 and 8,634,359.38

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Solution

The fourth proportional to 18,731,738.38, 28,097,207.42 and 8,634,359.38 is: 12,951,354.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731,738.38 : 28,097,207.42 = 8,634,359.38 : x
  2. Step 2: Convert to fraction form
    18,731,738.38/28,097,207.42 = 8,634,359.38/x
  3. Step 3: Cross multiply
    18,731,738.38x = 28,097,207.42 × 8,634,359.38
  4. Step 4: Simplify right side
    18,731,738.38x = 242,601,386,438,682.62
  5. Step 5: Solve for x
    x = 242,601,386,438,682.62/18,731,738.38
  6. Step 6: Final answer
    x = 12,951,354.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.