Home / 137,518,345.80-206,206,659.90-51,212,327.40

Finding the Fourth Proportional to 137,518,345.80, 206,206,659.90 and 51,212,327.40

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Solution

The fourth proportional to 137,518,345.80, 206,206,659.90 and 51,212,327.40 is: 76,792,103.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,518,345.80 : 206,206,659.90 = 51,212,327.40 : x
  2. Step 2: Convert to fraction form
    137,518,345.80/206,206,659.90 = 51,212,327.40/x
  3. Step 3: Cross multiply
    137,518,345.80x = 206,206,659.90 × 51,212,327.40
  4. Step 4: Simplify right side
    137,518,345.80x = 10,560,322,978,859,252
  5. Step 5: Solve for x
    x = 10,560,322,978,859,252/137,518,345.80
  6. Step 6: Final answer
    x = 76,792,103.03

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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.