Home / 289,718,906,087.08-399,812,109,623.22-161,257,597,859.80

Finding the Fourth Proportional to 289,718,906,087.08, 399,812,109,623.22 and 161,257,597,859.80

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Solution

The fourth proportional to 289,718,906,087.08, 399,812,109,623.22 and 161,257,597,859.80 is: 222,535,495,746.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,718,906,087.08 : 399,812,109,623.22 = 161,257,597,859.80 : x
  2. Step 2: Convert to fraction form
    289,718,906,087.08/399,812,109,623.22 = 161,257,597,859.80/x
  3. Step 3: Cross multiply
    289,718,906,087.08x = 399,812,109,623.22 × 161,257,597,859.80
  4. Step 4: Simplify right side
    289,718,906,087.08x = 64,472,740,393,099,471,093,760
  5. Step 5: Solve for x
    x = 64,472,740,393,099,471,093,760/289,718,906,087.08
  6. Step 6: Final answer
    x = 222,535,495,746.08

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1.5x scale

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.