Home / 21,265,556.92-31,900,552.20-8,134,949.20

Finding the Fourth Proportional to 21,265,556.92, 31,900,552.20 and 8,134,949.20

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Solution

The fourth proportional to 21,265,556.92, 31,900,552.20 and 8,134,949.20 is: 12,203,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265,556.92 : 31,900,552.20 = 8,134,949.20 : x
  2. Step 2: Convert to fraction form
    21,265,556.92/31,900,552.20 = 8,134,949.20/x
  3. Step 3: Cross multiply
    21,265,556.92x = 31,900,552.20 × 8,134,949.20
  4. Step 4: Simplify right side
    21,265,556.92x = 259,509,371,598,948.25
  5. Step 5: Solve for x
    x = 259,509,371,598,948.25/21,265,556.92
  6. Step 6: Final answer
    x = 12,203,271.82

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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.