Home / 54,378,613.23-81,567,920.66-20,302,616.31

Finding the Fourth Proportional to 54,378,613.23, 81,567,920.66 and 20,302,616.31

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Solution

The fourth proportional to 54,378,613.23, 81,567,920.66 and 20,302,616.31 is: 30,453,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,378,613.23 : 81,567,920.66 = 20,302,616.31 : x
  2. Step 2: Convert to fraction form
    54,378,613.23/81,567,920.66 = 20,302,616.31/x
  3. Step 3: Cross multiply
    54,378,613.23x = 81,567,920.66 × 20,302,616.31
  4. Step 4: Simplify right side
    54,378,613.23x = 1,656,042,196,262,988.75
  5. Step 5: Solve for x
    x = 1,656,042,196,262,988.75/54,378,613.23
  6. Step 6: Final answer
    x = 30,453,924.77

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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.