Home / 21,001,895.70-31,467,414.15-10,195,928.70

Finding the Fourth Proportional to 21,001,895.70, 31,467,414.15 and 10,195,928.70

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Solution

The fourth proportional to 21,001,895.70, 31,467,414.15 and 10,195,928.70 is: 15,276,692.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001,895.70 : 31,467,414.15 = 10,195,928.70 : x
  2. Step 2: Convert to fraction form
    21,001,895.70/31,467,414.15 = 10,195,928.70/x
  3. Step 3: Cross multiply
    21,001,895.70x = 31,467,414.15 × 10,195,928.70
  4. Step 4: Simplify right side
    21,001,895.70x = 320,839,511,046,771.06
  5. Step 5: Solve for x
    x = 320,839,511,046,771.06/21,001,895.70
  6. Step 6: Final answer
    x = 15,276,692.91

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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.