Home / 666,366,134,168.35-999,234,109,717.55-258,143,707,854.20

Finding the Fourth Proportional to 666,366,134,168.35, 999,234,109,717.55 and 258,143,707,854.20

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Solution

The fourth proportional to 666,366,134,168.35, 999,234,109,717.55 and 258,143,707,854.20 is: 387,093,498,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,366,134,168.35 : 999,234,109,717.55 = 258,143,707,854.20 : x
  2. Step 2: Convert to fraction form
    666,366,134,168.35/999,234,109,717.55 = 258,143,707,854.20/x
  3. Step 3: Cross multiply
    666,366,134,168.35x = 999,234,109,717.55 × 258,143,707,854.20
  4. Step 4: Simplify right side
    666,366,134,168.35x = 257,945,998,096,878,882,783,232
  5. Step 5: Solve for x
    x = 257,945,998,096,878,882,783,232/666,366,134,168.35
  6. Step 6: Final answer
    x = 387,093,498,409.56

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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.