Home / 252,390,804.20-378,436,907.10-131,458,452.20

Finding the Fourth Proportional to 252,390,804.20, 378,436,907.10 and 131,458,452.20

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Solution

The fourth proportional to 252,390,804.20, 378,436,907.10 and 131,458,452.20 is: 197,109,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,390,804.20 : 378,436,907.10 = 131,458,452.20 : x
  2. Step 2: Convert to fraction form
    252,390,804.20/378,436,907.10 = 131,458,452.20/x
  3. Step 3: Cross multiply
    252,390,804.20x = 378,436,907.10 × 131,458,452.20
  4. Step 4: Simplify right side
    252,390,804.20x = 49,748,730,062,721,192
  5. Step 5: Solve for x
    x = 49,748,730,062,721,192/252,390,804.20
  6. Step 6: Final answer
    x = 197,109,915.40

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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.