Home / 265,720,060.80-398,643,076.80-136,347,638.40

Finding the Fourth Proportional to 265,720,060.80, 398,643,076.80 and 136,347,638.40

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Solution

The fourth proportional to 265,720,060.80, 398,643,076.80 and 136,347,638.40 is: 204,553,777.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,720,060.80 : 398,643,076.80 = 136,347,638.40 : x
  2. Step 2: Convert to fraction form
    265,720,060.80/398,643,076.80 = 136,347,638.40/x
  3. Step 3: Cross multiply
    265,720,060.80x = 398,643,076.80 × 136,347,638.40
  4. Step 4: Simplify right side
    265,720,060.80x = 54,354,042,086,189,832
  5. Step 5: Solve for x
    x = 54,354,042,086,189,832/265,720,060.80
  6. Step 6: Final answer
    x = 204,553,777.09

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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.