Home / 230,868,380.43-318,598,672.32-125,021,978.39

Finding the Fourth Proportional to 230,868,380.43, 318,598,672.32 and 125,021,978.39

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Solution

The fourth proportional to 230,868,380.43, 318,598,672.32 and 125,021,978.39 is: 172,530,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,868,380.43 : 318,598,672.32 = 125,021,978.39 : x
  2. Step 2: Convert to fraction form
    230,868,380.43/318,598,672.32 = 125,021,978.39/x
  3. Step 3: Cross multiply
    230,868,380.43x = 318,598,672.32 × 125,021,978.39
  4. Step 4: Simplify right side
    230,868,380.43x = 39,831,836,325,248,624
  5. Step 5: Solve for x
    x = 39,831,836,325,248,624/230,868,380.43
  6. Step 6: Final answer
    x = 172,530,496.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.