Home / 13,629,964.80-20,427,580.80-7,243,276.80

Finding the Fourth Proportional to 13,629,964.80, 20,427,580.80 and 7,243,276.80

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Solution

The fourth proportional to 13,629,964.80, 20,427,580.80 and 7,243,276.80 is: 10,855,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629,964.80 : 20,427,580.80 = 7,243,276.80 : x
  2. Step 2: Convert to fraction form
    13,629,964.80/20,427,580.80 = 7,243,276.80/x
  3. Step 3: Cross multiply
    13,629,964.80x = 20,427,580.80 × 7,243,276.80
  4. Step 4: Simplify right side
    13,629,964.80x = 147,962,622,088,765.44
  5. Step 5: Solve for x
    x = 147,962,622,088,765.44/13,629,964.80
  6. Step 6: Final answer
    x = 10,855,686.30

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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.