Home / 666,366,134,185.70-999,234,109,743.45-258,143,707,871.60

Finding the Fourth Proportional to 666,366,134,185.70, 999,234,109,743.45 and 258,143,707,871.60

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Solution

The fourth proportional to 666,366,134,185.70, 999,234,109,743.45 and 258,143,707,871.60 is: 387,093,498,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,366,134,185.70 : 999,234,109,743.45 = 258,143,707,871.60 : x
  2. Step 2: Convert to fraction form
    666,366,134,185.70/999,234,109,743.45 = 258,143,707,871.60/x
  3. Step 3: Cross multiply
    666,366,134,185.70x = 999,234,109,743.45 × 258,143,707,871.60
  4. Step 4: Simplify right side
    666,366,134,185.70x = 257,945,998,120,951,436,279,808
  5. Step 5: Solve for x
    x = 257,945,998,120,951,436,279,808/666,366,134,185.70
  6. Step 6: Final answer
    x = 387,093,498,435.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.