Home / 168,443,781.40-252,665,672.10-77,744,517.40

Finding the Fourth Proportional to 168,443,781.40, 252,665,672.10 and 77,744,517.40

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Solution

The fourth proportional to 168,443,781.40, 252,665,672.10 and 77,744,517.40 is: 116,616,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,443,781.40 : 252,665,672.10 = 77,744,517.40 : x
  2. Step 2: Convert to fraction form
    168,443,781.40/252,665,672.10 = 77,744,517.40/x
  3. Step 3: Cross multiply
    168,443,781.40x = 252,665,672.10 × 77,744,517.40
  4. Step 4: Simplify right side
    168,443,781.40x = 19,643,370,740,961,144
  5. Step 5: Solve for x
    x = 19,643,370,740,961,144/168,443,781.40
  6. Step 6: Final answer
    x = 116,616,776.10

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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.