Home / 468,558,517.28-646,609,638.12-256,864,971.92

Finding the Fourth Proportional to 468,558,517.28, 646,609,638.12 and 256,864,971.92

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Solution

The fourth proportional to 468,558,517.28, 646,609,638.12 and 256,864,971.92 is: 354,473,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,558,517.28 : 646,609,638.12 = 256,864,971.92 : x
  2. Step 2: Convert to fraction form
    468,558,517.28/646,609,638.12 = 256,864,971.92/x
  3. Step 3: Cross multiply
    468,558,517.28x = 646,609,638.12 × 256,864,971.92
  4. Step 4: Simplify right side
    468,558,517.28x = 166,091,366,538,895,168
  5. Step 5: Solve for x
    x = 166,091,366,538,895,168/468,558,517.28
  6. Step 6: Final answer
    x = 354,473,049.61

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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.