Home / 252,390,803.20-378,436,905.60-131,458,451.20

Finding the Fourth Proportional to 252,390,803.20, 378,436,905.60 and 131,458,451.20

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Solution

The fourth proportional to 252,390,803.20, 378,436,905.60 and 131,458,451.20 is: 197,109,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,390,803.20 : 378,436,905.60 = 131,458,451.20 : x
  2. Step 2: Convert to fraction form
    252,390,803.20/378,436,905.60 = 131,458,451.20/x
  3. Step 3: Cross multiply
    252,390,803.20x = 378,436,905.60 × 131,458,451.20
  4. Step 4: Simplify right side
    252,390,803.20x = 49,748,729,487,096,608
  5. Step 5: Solve for x
    x = 49,748,729,487,096,608/252,390,803.20
  6. Step 6: Final answer
    x = 197,109,913.90

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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.