Home / 20,728,008.94-31,095,998.60-7,947,516.95

Finding the Fourth Proportional to 20,728,008.94, 31,095,998.60 and 7,947,516.95

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Solution

The fourth proportional to 20,728,008.94, 31,095,998.60 and 7,947,516.95 is: 11,922,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,008.94 : 31,095,998.60 = 7,947,516.95 : x
  2. Step 2: Convert to fraction form
    20,728,008.94/31,095,998.60 = 7,947,516.95/x
  3. Step 3: Cross multiply
    20,728,008.94x = 31,095,998.60 × 7,947,516.95
  4. Step 4: Simplify right side
    20,728,008.94x = 247,135,975,950,676.28
  5. Step 5: Solve for x
    x = 247,135,975,950,676.28/20,728,008.94
  6. Step 6: Final answer
    x = 11,922,803.42

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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.