Home / 354,294,672.30-531,442,008.45-281,115,246.60

Finding the Fourth Proportional to 354,294,672.30, 531,442,008.45 and 281,115,246.60

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Solution

The fourth proportional to 354,294,672.30, 531,442,008.45 and 281,115,246.60 is: 421,672,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,672.30 : 531,442,008.45 = 281,115,246.60 : x
  2. Step 2: Convert to fraction form
    354,294,672.30/531,442,008.45 = 281,115,246.60/x
  3. Step 3: Cross multiply
    354,294,672.30x = 531,442,008.45 × 281,115,246.60
  4. Step 4: Simplify right side
    354,294,672.30x = 149,396,451,259,021,056
  5. Step 5: Solve for x
    x = 149,396,451,259,021,056/354,294,672.30
  6. Step 6: Final answer
    x = 421,672,869.90

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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.