Home / 20,549,769.12-28,358,326.68-11,382,215.04

Finding the Fourth Proportional to 20,549,769.12, 28,358,326.68 and 11,382,215.04

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Solution

The fourth proportional to 20,549,769.12, 28,358,326.68 and 11,382,215.04 is: 15,707,260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549,769.12 : 28,358,326.68 = 11,382,215.04 : x
  2. Step 2: Convert to fraction form
    20,549,769.12/28,358,326.68 = 11,382,215.04/x
  3. Step 3: Cross multiply
    20,549,769.12x = 28,358,326.68 × 11,382,215.04
  4. Step 4: Simplify right side
    20,549,769.12x = 322,780,572,446,329.25
  5. Step 5: Solve for x
    x = 322,780,572,446,329.25/20,549,769.12
  6. Step 6: Final answer
    x = 15,707,260.29

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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.