Home / 12,291,321.60-18,436,982.40-6,622,617.60

Finding the Fourth Proportional to 12,291,321.60, 18,436,982.40 and 6,622,617.60

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Solution

The fourth proportional to 12,291,321.60, 18,436,982.40 and 6,622,617.60 is: 9,933,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291,321.60 : 18,436,982.40 = 6,622,617.60 : x
  2. Step 2: Convert to fraction form
    12,291,321.60/18,436,982.40 = 6,622,617.60/x
  3. Step 3: Cross multiply
    12,291,321.60x = 18,436,982.40 × 6,622,617.60
  4. Step 4: Simplify right side
    12,291,321.60x = 122,101,084,133,130.22
  5. Step 5: Solve for x
    x = 122,101,084,133,130.22/12,291,321.60
  6. Step 6: Final answer
    x = 9,933,926.40

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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.