Home / 20,138,821.80-30,208,232.70-5,762,747.40

Finding the Fourth Proportional to 20,138,821.80, 30,208,232.70 and 5,762,747.40

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Solution

The fourth proportional to 20,138,821.80, 30,208,232.70 and 5,762,747.40 is: 8,644,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,821.80 : 30,208,232.70 = 5,762,747.40 : x
  2. Step 2: Convert to fraction form
    20,138,821.80/30,208,232.70 = 5,762,747.40/x
  3. Step 3: Cross multiply
    20,138,821.80x = 30,208,232.70 × 5,762,747.40
  4. Step 4: Simplify right side
    20,138,821.80x = 174,082,414,450,520
  5. Step 5: Solve for x
    x = 174,082,414,450,520/20,138,821.80
  6. Step 6: Final answer
    x = 8,644,121.10

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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.