Home / 210,085,672.84-289,966,601.46-123,193,538.44

Finding the Fourth Proportional to 210,085,672.84, 289,966,601.46 and 123,193,538.44

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Solution

The fourth proportional to 210,085,672.84, 289,966,601.46 and 123,193,538.44 is: 170,035,448.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,085,672.84 : 289,966,601.46 = 123,193,538.44 : x
  2. Step 2: Convert to fraction form
    210,085,672.84/289,966,601.46 = 123,193,538.44/x
  3. Step 3: Cross multiply
    210,085,672.84x = 289,966,601.46 × 123,193,538.44
  4. Step 4: Simplify right side
    210,085,672.84x = 35,722,011,663,278,668
  5. Step 5: Solve for x
    x = 35,722,011,663,278,668/210,085,672.84
  6. Step 6: Final answer
    x = 170,035,448.78

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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.