Home / 21,351,947.68-29,467,795.44-12,185,961.76

Finding the Fourth Proportional to 21,351,947.68, 29,467,795.44 and 12,185,961.76

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Solution

The fourth proportional to 21,351,947.68, 29,467,795.44 and 12,185,961.76 is: 16,817,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351,947.68 : 29,467,795.44 = 12,185,961.76 : x
  2. Step 2: Convert to fraction form
    21,351,947.68/29,467,795.44 = 12,185,961.76/x
  3. Step 3: Cross multiply
    21,351,947.68x = 29,467,795.44 × 12,185,961.76
  4. Step 4: Simplify right side
    21,351,947.68x = 359,093,428,383,342.38
  5. Step 5: Solve for x
    x = 359,093,428,383,342.38/21,351,947.68
  6. Step 6: Final answer
    x = 16,817,830.10

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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.