Home / 20,190,704.80-30,286,057.20-9,404,420.80

Finding the Fourth Proportional to 20,190,704.80, 30,286,057.20 and 9,404,420.80

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Solution

The fourth proportional to 20,190,704.80, 30,286,057.20 and 9,404,420.80 is: 14,106,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,704.80 : 30,286,057.20 = 9,404,420.80 : x
  2. Step 2: Convert to fraction form
    20,190,704.80/30,286,057.20 = 9,404,420.80/x
  3. Step 3: Cross multiply
    20,190,704.80x = 30,286,057.20 × 9,404,420.80
  4. Step 4: Simplify right side
    20,190,704.80x = 284,822,826,281,669.75
  5. Step 5: Solve for x
    x = 284,822,826,281,669.75/20,190,704.80
  6. Step 6: Final answer
    x = 14,106,631.20

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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.