Home / 20,375,998.40-30,563,122.80-6,912,826.40

Finding the Fourth Proportional to 20,375,998.40, 30,563,122.80 and 6,912,826.40

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Solution

The fourth proportional to 20,375,998.40, 30,563,122.80 and 6,912,826.40 is: 10,368,942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375,998.40 : 30,563,122.80 = 6,912,826.40 : x
  2. Step 2: Convert to fraction form
    20,375,998.40/30,563,122.80 = 6,912,826.40/x
  3. Step 3: Cross multiply
    20,375,998.40x = 30,563,122.80 × 6,912,826.40
  4. Step 4: Simplify right side
    20,375,998.40x = 211,277,562,158,281.94
  5. Step 5: Solve for x
    x = 211,277,562,158,281.94/20,375,998.40
  6. Step 6: Final answer
    x = 10,368,942.81

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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.