Home / 138,809,960.20-191,557,763.22-76,934,293.48

Finding the Fourth Proportional to 138,809,960.20, 191,557,763.22 and 76,934,293.48

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Solution

The fourth proportional to 138,809,960.20, 191,557,763.22 and 76,934,293.48 is: 106,169,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,809,960.20 : 191,557,763.22 = 76,934,293.48 : x
  2. Step 2: Convert to fraction form
    138,809,960.20/191,557,763.22 = 76,934,293.48/x
  3. Step 3: Cross multiply
    138,809,960.20x = 191,557,763.22 × 76,934,293.48
  4. Step 4: Simplify right side
    138,809,960.20x = 14,737,361,173,939,830
  5. Step 5: Solve for x
    x = 14,737,361,173,939,830/138,809,960.20
  6. Step 6: Final answer
    x = 106,169,335.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.