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Finding the Fourth Proportional to 20,682,806.40, 30,968,222.40 and 16,203,830.40

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Solution

The fourth proportional to 20,682,806.40, 30,968,222.40 and 16,203,830.40 is: 24,261,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682,806.40 : 30,968,222.40 = 16,203,830.40 : x
  2. Step 2: Convert to fraction form
    20,682,806.40/30,968,222.40 = 16,203,830.40/x
  3. Step 3: Cross multiply
    20,682,806.40x = 30,968,222.40 × 16,203,830.40
  4. Step 4: Simplify right side
    20,682,806.40x = 501,803,823,559,080.94
  5. Step 5: Solve for x
    x = 501,803,823,559,080.94/20,682,806.40
  6. Step 6: Final answer
    x = 24,261,882.74

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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.