Home / 31,215,982,110.96-43,078,087,194.78-16,942,812,677.76

Finding the Fourth Proportional to 31,215,982,110.96, 43,078,087,194.78 and 16,942,812,677.76

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Solution

The fourth proportional to 31,215,982,110.96, 43,078,087,194.78 and 16,942,812,677.76 is: 23,381,098,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215,982,110.96 : 43,078,087,194.78 = 16,942,812,677.76 : x
  2. Step 2: Convert to fraction form
    31,215,982,110.96/43,078,087,194.78 = 16,942,812,677.76/x
  3. Step 3: Cross multiply
    31,215,982,110.96x = 43,078,087,194.78 × 16,942,812,677.76
  4. Step 4: Simplify right side
    31,215,982,110.96x = 729,863,961,857,369,309,184
  5. Step 5: Solve for x
    x = 729,863,961,857,369,309,184/31,215,982,110.96
  6. Step 6: Final answer
    x = 23,381,098,799.42

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Double scale
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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.