Home / 252,487,228.80-378,432,244.80-131,256,278.40

Finding the Fourth Proportional to 252,487,228.80, 378,432,244.80 and 131,256,278.40

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Solution

The fourth proportional to 252,487,228.80, 378,432,244.80 and 131,256,278.40 is: 196,729,190.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,487,228.80 : 378,432,244.80 = 131,256,278.40 : x
  2. Step 2: Convert to fraction form
    252,487,228.80/378,432,244.80 = 131,256,278.40/x
  3. Step 3: Cross multiply
    252,487,228.80x = 378,432,244.80 × 131,256,278.40
  4. Step 4: Simplify right side
    252,487,228.80x = 49,671,608,079,005,760
  5. Step 5: Solve for x
    x = 49,671,608,079,005,760/252,487,228.80
  6. Step 6: Final answer
    x = 196,729,190.28

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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.