Home / 263,167,399.20-394,788,423.60-81,395,623.20

Finding the Fourth Proportional to 263,167,399.20, 394,788,423.60 and 81,395,623.20

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Solution

The fourth proportional to 263,167,399.20, 394,788,423.60 and 81,395,623.20 is: 122,104,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,167,399.20 : 394,788,423.60 = 81,395,623.20 : x
  2. Step 2: Convert to fraction form
    263,167,399.20/394,788,423.60 = 81,395,623.20/x
  3. Step 3: Cross multiply
    263,167,399.20x = 394,788,423.60 × 81,395,623.20
  4. Step 4: Simplify right side
    263,167,399.20x = 32,134,049,771,067,592
  5. Step 5: Solve for x
    x = 32,134,049,771,067,592/263,167,399.20
  6. Step 6: Final answer
    x = 122,104,979.07

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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.