Home / 221,008,481.18-331,456,176.20-65,525,931.88

Finding the Fourth Proportional to 221,008,481.18, 331,456,176.20 and 65,525,931.88

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Solution

The fourth proportional to 221,008,481.18, 331,456,176.20 and 65,525,931.88 is: 98,272,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,008,481.18 : 331,456,176.20 = 65,525,931.88 : x
  2. Step 2: Convert to fraction form
    221,008,481.18/331,456,176.20 = 65,525,931.88/x
  3. Step 3: Cross multiply
    221,008,481.18x = 331,456,176.20 × 65,525,931.88
  4. Step 4: Simplify right side
    221,008,481.18x = 21,718,974,822,886,476
  5. Step 5: Solve for x
    x = 21,718,974,822,886,476/221,008,481.18
  6. Step 6: Final answer
    x = 98,272,132.85

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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.