Home / 639,852,137.52-959,814,078.40-179,754,434.96

Finding the Fourth Proportional to 639,852,137.52, 959,814,078.40 and 179,754,434.96

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Solution

The fourth proportional to 639,852,137.52, 959,814,078.40 and 179,754,434.96 is: 269,641,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,852,137.52 : 959,814,078.40 = 179,754,434.96 : x
  2. Step 2: Convert to fraction form
    639,852,137.52/959,814,078.40 = 179,754,434.96/x
  3. Step 3: Cross multiply
    639,852,137.52x = 959,814,078.40 × 179,754,434.96
  4. Step 4: Simplify right side
    639,852,137.52x = 172,530,837,329,445,152
  5. Step 5: Solve for x
    x = 172,530,837,329,445,152/639,852,137.52
  6. Step 6: Final answer
    x = 269,641,730.04

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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.