Home / 20,357,165.22-30,535,728.30-5,211,072.42

Finding the Fourth Proportional to 20,357,165.22, 30,535,728.30 and 5,211,072.42

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Solution

The fourth proportional to 20,357,165.22, 30,535,728.30 and 5,211,072.42 is: 7,816,603.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357,165.22 : 30,535,728.30 = 5,211,072.42 : x
  2. Step 2: Convert to fraction form
    20,357,165.22/30,535,728.30 = 5,211,072.42/x
  3. Step 3: Cross multiply
    20,357,165.22x = 30,535,728.30 × 5,211,072.42
  4. Step 4: Simplify right side
    20,357,165.22x = 159,123,891,568,743.50
  5. Step 5: Solve for x
    x = 159,123,891,568,743.50/20,357,165.22
  6. Step 6: Final answer
    x = 7,816,603.63

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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.