Home / 31,215,982,090.36-43,078,087,166.30-16,942,812,657.10

Finding the Fourth Proportional to 31,215,982,090.36, 43,078,087,166.30 and 16,942,812,657.10

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Solution

The fourth proportional to 31,215,982,090.36, 43,078,087,166.30 and 16,942,812,657.10 is: 23,381,098,770.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215,982,090.36 : 43,078,087,166.30 = 16,942,812,657.10 : x
  2. Step 2: Convert to fraction form
    31,215,982,090.36/43,078,087,166.30 = 16,942,812,657.10/x
  3. Step 3: Cross multiply
    31,215,982,090.36x = 43,078,087,166.30 × 16,942,812,657.10
  4. Step 4: Simplify right side
    31,215,982,090.36x = 729,863,960,484,749,377,536
  5. Step 5: Solve for x
    x = 729,863,960,484,749,377,536/31,215,982,090.36
  6. Step 6: Final answer
    x = 23,381,098,770.88

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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.