Home / 168,443,778.15-252,665,667.23-77,744,514.15

Finding the Fourth Proportional to 168,443,778.15, 252,665,667.23 and 77,744,514.15

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Solution

The fourth proportional to 168,443,778.15, 252,665,667.23 and 77,744,514.15 is: 116,616,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,443,778.15 : 252,665,667.23 = 77,744,514.15 : x
  2. Step 2: Convert to fraction form
    168,443,778.15/252,665,667.23 = 77,744,514.15/x
  3. Step 3: Cross multiply
    168,443,778.15x = 252,665,667.23 × 77,744,514.15
  4. Step 4: Simplify right side
    168,443,778.15x = 19,643,369,540,793,204
  5. Step 5: Solve for x
    x = 19,643,369,540,793,204/168,443,778.15
  6. Step 6: Final answer
    x = 116,616,771.23

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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.