Home / 262,268,948.21-393,398,020.92-87,404,678.60

Finding the Fourth Proportional to 262,268,948.21, 393,398,020.92 and 87,404,678.60

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Solution

The fourth proportional to 262,268,948.21, 393,398,020.92 and 87,404,678.60 is: 131,105,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,268,948.21 : 393,398,020.92 = 87,404,678.60 : x
  2. Step 2: Convert to fraction form
    262,268,948.21/393,398,020.92 = 87,404,678.60/x
  3. Step 3: Cross multiply
    262,268,948.21x = 393,398,020.92 × 87,404,678.60
  4. Step 4: Simplify right side
    262,268,948.21x = 34,384,827,580,388,676
  5. Step 5: Solve for x
    x = 34,384,827,580,388,676/262,268,948.21
  6. Step 6: Final answer
    x = 131,105,217.81

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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.