Home / 639,852,138.52-959,814,079.90-179,754,435.96

Finding the Fourth Proportional to 639,852,138.52, 959,814,079.90 and 179,754,435.96

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Solution

The fourth proportional to 639,852,138.52, 959,814,079.90 and 179,754,435.96 is: 269,641,731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,852,138.52 : 959,814,079.90 = 179,754,435.96 : x
  2. Step 2: Convert to fraction form
    639,852,138.52/959,814,079.90 = 179,754,435.96/x
  3. Step 3: Cross multiply
    639,852,138.52x = 959,814,079.90 × 179,754,435.96
  4. Step 4: Simplify right side
    639,852,138.52x = 172,530,838,558,890,880
  5. Step 5: Solve for x
    x = 172,530,838,558,890,880/639,852,138.52
  6. Step 6: Final answer
    x = 269,641,731.54

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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.