Home / 20,543,940-30,815,838.72-6,166,949.76

Finding the Fourth Proportional to 20,543,940, 30,815,838.72 and 6,166,949.76

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Solution

The fourth proportional to 20,543,940, 30,815,838.72 and 6,166,949.76 is: 9,250,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543,940 : 30,815,838.72 = 6,166,949.76 : x
  2. Step 2: Convert to fraction form
    20,543,940/30,815,838.72 = 6,166,949.76/x
  3. Step 3: Cross multiply
    20,543,940x = 30,815,838.72 × 6,166,949.76
  4. Step 4: Simplify right side
    20,543,940x = 190,039,729,198,502.69
  5. Step 5: Solve for x
    x = 190,039,729,198,502.69/20,543,940
  6. Step 6: Final answer
    x = 9,250,403.24

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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.