Home / 513,253,003.60-769,879,505.40-168,123,408.40

Finding the Fourth Proportional to 513,253,003.60, 769,879,505.40 and 168,123,408.40

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Solution

The fourth proportional to 513,253,003.60, 769,879,505.40 and 168,123,408.40 is: 252,185,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,253,003.60 : 769,879,505.40 = 168,123,408.40 : x
  2. Step 2: Convert to fraction form
    513,253,003.60/769,879,505.40 = 168,123,408.40/x
  3. Step 3: Cross multiply
    513,253,003.60x = 769,879,505.40 × 168,123,408.40
  4. Step 4: Simplify right side
    513,253,003.60x = 129,434,766,505,154,208
  5. Step 5: Solve for x
    x = 129,434,766,505,154,208/513,253,003.60
  6. Step 6: Final answer
    x = 252,185,112.60

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1.5x scale

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.