Home / 20,511,737.79-30,756,247.94-8,389,713.57

Finding the Fourth Proportional to 20,511,737.79, 30,756,247.94 and 8,389,713.57

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Solution

The fourth proportional to 20,511,737.79, 30,756,247.94 and 8,389,713.57 is: 12,579,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511,737.79 : 30,756,247.94 = 8,389,713.57 : x
  2. Step 2: Convert to fraction form
    20,511,737.79/30,756,247.94 = 8,389,713.57/x
  3. Step 3: Cross multiply
    20,511,737.79x = 30,756,247.94 × 8,389,713.57
  4. Step 4: Simplify right side
    20,511,737.79x = 258,036,110,662,553.97
  5. Step 5: Solve for x
    x = 258,036,110,662,553.97/20,511,737.79
  6. Step 6: Final answer
    x = 12,579,924.40

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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.