Home / 140,234,952.51-210,286,223.01-81,959,348.61

Finding the Fourth Proportional to 140,234,952.51, 210,286,223.01 and 81,959,348.61

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Solution

The fourth proportional to 140,234,952.51, 210,286,223.01 and 81,959,348.61 is: 122,900,329.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,234,952.51 : 210,286,223.01 = 81,959,348.61 : x
  2. Step 2: Convert to fraction form
    140,234,952.51/210,286,223.01 = 81,959,348.61/x
  3. Step 3: Cross multiply
    140,234,952.51x = 210,286,223.01 × 81,959,348.61
  4. Step 4: Simplify right side
    140,234,952.51x = 17,234,921,859,556,792
  5. Step 5: Solve for x
    x = 17,234,921,859,556,792/140,234,952.51
  6. Step 6: Final answer
    x = 122,900,329.42

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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.