Home / 145,161,012.80-217,741,519.20-54,265,793.60

Finding the Fourth Proportional to 145,161,012.80, 217,741,519.20 and 54,265,793.60

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Solution

The fourth proportional to 145,161,012.80, 217,741,519.20 and 54,265,793.60 is: 81,398,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,161,012.80 : 217,741,519.20 = 54,265,793.60 : x
  2. Step 2: Convert to fraction form
    145,161,012.80/217,741,519.20 = 54,265,793.60/x
  3. Step 3: Cross multiply
    145,161,012.80x = 217,741,519.20 × 54,265,793.60
  4. Step 4: Simplify right side
    145,161,012.80x = 11,815,916,339,057,636
  5. Step 5: Solve for x
    x = 11,815,916,339,057,636/145,161,012.80
  6. Step 6: Final answer
    x = 81,398,690.40

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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.