Home / 666,366,134,186.70-999,234,109,744.94-258,143,707,872.60

Finding the Fourth Proportional to 666,366,134,186.70, 999,234,109,744.94 and 258,143,707,872.60

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Solution

The fourth proportional to 666,366,134,186.70, 999,234,109,744.94 and 258,143,707,872.60 is: 387,093,498,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,366,134,186.70 : 999,234,109,744.94 = 258,143,707,872.60 : x
  2. Step 2: Convert to fraction form
    666,366,134,186.70/999,234,109,744.94 = 258,143,707,872.60/x
  3. Step 3: Cross multiply
    666,366,134,186.70x = 999,234,109,744.94 × 258,143,707,872.60
  4. Step 4: Simplify right side
    666,366,134,186.70x = 257,945,998,122,335,321,718,784
  5. Step 5: Solve for x
    x = 257,945,998,122,335,321,718,784/666,366,134,186.70
  6. Step 6: Final answer
    x = 387,093,498,437.10

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1.5x scale

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.