Home / 14,003,999.40-21,005,999.10-8,321,298.60

Finding the Fourth Proportional to 14,003,999.40, 21,005,999.10 and 8,321,298.60

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Solution

The fourth proportional to 14,003,999.40, 21,005,999.10 and 8,321,298.60 is: 12,481,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003,999.40 : 21,005,999.10 = 8,321,298.60 : x
  2. Step 2: Convert to fraction form
    14,003,999.40/21,005,999.10 = 8,321,298.60/x
  3. Step 3: Cross multiply
    14,003,999.40x = 21,005,999.10 × 8,321,298.60
  4. Step 4: Simplify right side
    14,003,999.40x = 174,797,190,902,431.25
  5. Step 5: Solve for x
    x = 174,797,190,902,431.25/14,003,999.40
  6. Step 6: Final answer
    x = 12,481,947.90

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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.