Home / 12,151,172.40-18,202,264.20-7,588,215.60

Finding the Fourth Proportional to 12,151,172.40, 18,202,264.20 and 7,588,215.60

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Solution

The fourth proportional to 12,151,172.40, 18,202,264.20 and 7,588,215.60 is: 11,367,027.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151,172.40 : 18,202,264.20 = 7,588,215.60 : x
  2. Step 2: Convert to fraction form
    12,151,172.40/18,202,264.20 = 7,588,215.60/x
  3. Step 3: Cross multiply
    12,151,172.40x = 18,202,264.20 × 7,588,215.60
  4. Step 4: Simplify right side
    12,151,172.40x = 138,122,705,157,761.50
  5. Step 5: Solve for x
    x = 138,122,705,157,761.50/12,151,172.40
  6. Step 6: Final answer
    x = 11,367,027.03

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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.