Home / 326,218,761.20-489,328,141.80-110,808,009.20

Finding the Fourth Proportional to 326,218,761.20, 489,328,141.80 and 110,808,009.20

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Solution

The fourth proportional to 326,218,761.20, 489,328,141.80 and 110,808,009.20 is: 166,212,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,218,761.20 : 489,328,141.80 = 110,808,009.20 : x
  2. Step 2: Convert to fraction form
    326,218,761.20/489,328,141.80 = 110,808,009.20/x
  3. Step 3: Cross multiply
    326,218,761.20x = 489,328,141.80 × 110,808,009.20
  4. Step 4: Simplify right side
    326,218,761.20x = 54,221,477,238,393,304
  5. Step 5: Solve for x
    x = 54,221,477,238,393,304/326,218,761.20
  6. Step 6: Final answer
    x = 166,212,013.80

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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.