Home / 13,297,243.20-19,945,864.80-7,628,539.20

Finding the Fourth Proportional to 13,297,243.20, 19,945,864.80 and 7,628,539.20

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Solution

The fourth proportional to 13,297,243.20, 19,945,864.80 and 7,628,539.20 is: 11,442,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297,243.20 : 19,945,864.80 = 7,628,539.20 : x
  2. Step 2: Convert to fraction form
    13,297,243.20/19,945,864.80 = 7,628,539.20/x
  3. Step 3: Cross multiply
    13,297,243.20x = 19,945,864.80 × 7,628,539.20
  4. Step 4: Simplify right side
    13,297,243.20x = 152,157,811,504,700.16
  5. Step 5: Solve for x
    x = 152,157,811,504,700.16/13,297,243.20
  6. Step 6: Final answer
    x = 11,442,808.80

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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.