Home / 18,893,919.65-28,316,914.01-8,508,057.43

Finding the Fourth Proportional to 18,893,919.65, 28,316,914.01 and 8,508,057.43

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Solution

The fourth proportional to 18,893,919.65, 28,316,914.01 and 8,508,057.43 is: 12,751,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893,919.65 : 28,316,914.01 = 8,508,057.43 : x
  2. Step 2: Convert to fraction form
    18,893,919.65/28,316,914.01 = 8,508,057.43/x
  3. Step 3: Cross multiply
    18,893,919.65x = 28,316,914.01 × 8,508,057.43
  4. Step 4: Simplify right side
    18,893,919.65x = 240,921,930,656,976.28
  5. Step 5: Solve for x
    x = 240,921,930,656,976.28/18,893,919.65
  6. Step 6: Final answer
    x = 12,751,294.34

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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.