Home / 20,942,116-31,412,260.30-6,564,855.76

Finding the Fourth Proportional to 20,942,116, 31,412,260.30 and 6,564,855.76

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Solution

The fourth proportional to 20,942,116, 31,412,260.30 and 6,564,855.76 is: 9,846,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942,116 : 31,412,260.30 = 6,564,855.76 : x
  2. Step 2: Convert to fraction form
    20,942,116/31,412,260.30 = 6,564,855.76/x
  3. Step 3: Cross multiply
    20,942,116x = 31,412,260.30 × 6,564,855.76
  4. Step 4: Simplify right side
    20,942,116x = 206,216,957,965,074.31
  5. Step 5: Solve for x
    x = 206,216,957,965,074.31/20,942,116
  6. Step 6: Final answer
    x = 9,846,997.22

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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.