Home / 221,443,718.76-305,586,411.12-122,322,332.88

Finding the Fourth Proportional to 221,443,718.76, 305,586,411.12 and 122,322,332.88

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Solution

The fourth proportional to 221,443,718.76, 305,586,411.12 and 122,322,332.88 is: 168,801,548.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,443,718.76 : 305,586,411.12 = 122,322,332.88 : x
  2. Step 2: Convert to fraction form
    221,443,718.76/305,586,411.12 = 122,322,332.88/x
  3. Step 3: Cross multiply
    221,443,718.76x = 305,586,411.12 × 122,322,332.88
  4. Step 4: Simplify right side
    221,443,718.76x = 37,380,042,704,625,176
  5. Step 5: Solve for x
    x = 37,380,042,704,625,176/221,443,718.76
  6. Step 6: Final answer
    x = 168,801,548.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.