Home / 31,215,982,105.07-43,078,087,186.67-16,942,812,671.86

Finding the Fourth Proportional to 31,215,982,105.07, 43,078,087,186.67 and 16,942,812,671.86

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Solution

The fourth proportional to 31,215,982,105.07, 43,078,087,186.67 and 16,942,812,671.86 is: 23,381,098,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215,982,105.07 : 43,078,087,186.67 = 16,942,812,671.86 : x
  2. Step 2: Convert to fraction form
    31,215,982,105.07/43,078,087,186.67 = 16,942,812,671.86/x
  3. Step 3: Cross multiply
    31,215,982,105.07x = 43,078,087,186.67 × 16,942,812,671.86
  4. Step 4: Simplify right side
    31,215,982,105.07x = 729,863,961,465,991,593,984
  5. Step 5: Solve for x
    x = 729,863,961,465,991,593,984/31,215,982,105.07
  6. Step 6: Final answer
    x = 23,381,098,791.29

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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.