Home / 12,388,362.40-18,582,543.60-11,591,200.90

Finding the Fourth Proportional to 12,388,362.40, 18,582,543.60 and 11,591,200.90

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Solution

The fourth proportional to 12,388,362.40, 18,582,543.60 and 11,591,200.90 is: 17,386,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388,362.40 : 18,582,543.60 = 11,591,200.90 : x
  2. Step 2: Convert to fraction form
    12,388,362.40/18,582,543.60 = 11,591,200.90/x
  3. Step 3: Cross multiply
    12,388,362.40x = 18,582,543.60 × 11,591,200.90
  4. Step 4: Simplify right side
    12,388,362.40x = 215,393,996,100,609.25
  5. Step 5: Solve for x
    x = 215,393,996,100,609.25/12,388,362.40
  6. Step 6: Final answer
    x = 17,386,801.35

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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.