Home / 512,817,314.65-707,690,357.84-277,867,912.86

Finding the Fourth Proportional to 512,817,314.65, 707,690,357.84 and 277,867,912.86

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Solution

The fourth proportional to 512,817,314.65, 707,690,357.84 and 277,867,912.86 is: 383,459,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,817,314.65 : 707,690,357.84 = 277,867,912.86 : x
  2. Step 2: Convert to fraction form
    512,817,314.65/707,690,357.84 = 277,867,912.86/x
  3. Step 3: Cross multiply
    512,817,314.65x = 707,690,357.84 × 277,867,912.86
  4. Step 4: Simplify right side
    512,817,314.65x = 196,644,442,684,842,016
  5. Step 5: Solve for x
    x = 196,644,442,684,842,016/512,817,314.65
  6. Step 6: Final answer
    x = 383,459,054.65

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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.