Home / 15,197,915.70-20,972,493.81-8,322,279.30

Finding the Fourth Proportional to 15,197,915.70, 20,972,493.81 and 8,322,279.30

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Solution

The fourth proportional to 15,197,915.70, 20,972,493.81 and 8,322,279.30 is: 11,484,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197,915.70 : 20,972,493.81 = 8,322,279.30 : x
  2. Step 2: Convert to fraction form
    15,197,915.70/20,972,493.81 = 8,322,279.30/x
  3. Step 3: Cross multiply
    15,197,915.70x = 20,972,493.81 × 8,322,279.30
  4. Step 4: Simplify right side
    15,197,915.70x = 174,538,951,104,341.12
  5. Step 5: Solve for x
    x = 174,538,951,104,341.12/15,197,915.70
  6. Step 6: Final answer
    x = 11,484,400.53

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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.