Home / 312,162,476.85-430,810,672.01-172,976,897.97

Finding the Fourth Proportional to 312,162,476.85, 430,810,672.01 and 172,976,897.97

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Solution

The fourth proportional to 312,162,476.85, 430,810,672.01 and 172,976,897.97 is: 238,722,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,162,476.85 : 430,810,672.01 = 172,976,897.97 : x
  2. Step 2: Convert to fraction form
    312,162,476.85/430,810,672.01 = 172,976,897.97/x
  3. Step 3: Cross multiply
    312,162,476.85x = 430,810,672.01 × 172,976,897.97
  4. Step 4: Simplify right side
    312,162,476.85x = 74,520,293,655,796,016
  5. Step 5: Solve for x
    x = 74,520,293,655,796,016/312,162,476.85
  6. Step 6: Final answer
    x = 238,722,777.98

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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.