Home / 20,630,246.40-30,945,369.60-5,485,708.80

Finding the Fourth Proportional to 20,630,246.40, 30,945,369.60 and 5,485,708.80

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Solution

The fourth proportional to 20,630,246.40, 30,945,369.60 and 5,485,708.80 is: 8,228,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,246.40 : 30,945,369.60 = 5,485,708.80 : x
  2. Step 2: Convert to fraction form
    20,630,246.40/30,945,369.60 = 5,485,708.80/x
  3. Step 3: Cross multiply
    20,630,246.40x = 30,945,369.60 × 5,485,708.80
  4. Step 4: Simplify right side
    20,630,246.40x = 169,757,286,333,972.47
  5. Step 5: Solve for x
    x = 169,757,286,333,972.47/20,630,246.40
  6. Step 6: Final answer
    x = 8,228,563.20

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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.