Home / 15,365,258.52-21,204,013.23-8,489,691.60

Finding the Fourth Proportional to 15,365,258.52, 21,204,013.23 and 8,489,691.60

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Solution

The fourth proportional to 15,365,258.52, 21,204,013.23 and 8,489,691.60 is: 11,715,750.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365,258.52 : 21,204,013.23 = 8,489,691.60 : x
  2. Step 2: Convert to fraction form
    15,365,258.52/21,204,013.23 = 8,489,691.60/x
  3. Step 3: Cross multiply
    15,365,258.52x = 21,204,013.23 × 8,489,691.60
  4. Step 4: Simplify right side
    15,365,258.52x = 180,015,533,005,019.88
  5. Step 5: Solve for x
    x = 180,015,533,005,019.88/15,365,258.52
  6. Step 6: Final answer
    x = 11,715,750.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.