Home / 21,337,508,657.70-31,993,856,657.82-8,073,791,557.92

Finding the Fourth Proportional to 21,337,508,657.70, 31,993,856,657.82 and 8,073,791,557.92

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Solution

The fourth proportional to 21,337,508,657.70, 31,993,856,657.82 and 8,073,791,557.92 is: 12,105,992,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337,508,657.70 : 31,993,856,657.82 = 8,073,791,557.92 : x
  2. Step 2: Convert to fraction form
    21,337,508,657.70/31,993,856,657.82 = 8,073,791,557.92/x
  3. Step 3: Cross multiply
    21,337,508,657.70x = 31,993,856,657.82 × 8,073,791,557.92
  4. Step 4: Simplify right side
    21,337,508,657.70x = 258,311,729,789,209,706,496
  5. Step 5: Solve for x
    x = 258,311,729,789,209,706,496/21,337,508,657.70
  6. Step 6: Final answer
    x = 12,105,992,969.15

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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.