Home / 299,375,999.60-449,063,999.40-138,132,863.60

Finding the Fourth Proportional to 299,375,999.60, 449,063,999.40 and 138,132,863.60

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Solution

The fourth proportional to 299,375,999.60, 449,063,999.40 and 138,132,863.60 is: 207,199,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,375,999.60 : 449,063,999.40 = 138,132,863.60 : x
  2. Step 2: Convert to fraction form
    299,375,999.60/449,063,999.40 = 138,132,863.60/x
  3. Step 3: Cross multiply
    299,375,999.60x = 449,063,999.40 × 138,132,863.60
  4. Step 4: Simplify right side
    299,375,999.60x = 62,030,496,176,790,672
  5. Step 5: Solve for x
    x = 62,030,496,176,790,672/299,375,999.60
  6. Step 6: Final answer
    x = 207,199,295.40

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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.