Home / 15,383,067.89-21,228,461.70-8,413,945.67

Finding the Fourth Proportional to 15,383,067.89, 21,228,461.70 and 8,413,945.67

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Solution

The fourth proportional to 15,383,067.89, 21,228,461.70 and 8,413,945.67 is: 11,611,150.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383,067.89 : 21,228,461.70 = 8,413,945.67 : x
  2. Step 2: Convert to fraction form
    15,383,067.89/21,228,461.70 = 8,413,945.67/x
  3. Step 3: Cross multiply
    15,383,067.89x = 21,228,461.70 × 8,413,945.67
  4. Step 4: Simplify right side
    15,383,067.89x = 178,615,123,446,663.09
  5. Step 5: Solve for x
    x = 178,615,123,446,663.09/15,383,067.89
  6. Step 6: Final answer
    x = 11,611,150.95

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Double scale
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1.5x scale

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.