Home / 21,477,188.40-29,638,524.69-11,819,396.40

Finding the Fourth Proportional to 21,477,188.40, 29,638,524.69 and 11,819,396.40

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Solution

The fourth proportional to 21,477,188.40, 29,638,524.69 and 11,819,396.40 is: 16,310,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477,188.40 : 29,638,524.69 = 11,819,396.40 : x
  2. Step 2: Convert to fraction form
    21,477,188.40/29,638,524.69 = 11,819,396.40/x
  3. Step 3: Cross multiply
    21,477,188.40x = 29,638,524.69 × 11,819,396.40
  4. Step 4: Simplify right side
    21,477,188.40x = 350,309,472,022,297.12
  5. Step 5: Solve for x
    x = 350,309,472,022,297.12/21,477,188.40
  6. Step 6: Final answer
    x = 16,310,769.62

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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.