Home / 19,821,161.73-29,728,199.19-12,611,278.83

Finding the Fourth Proportional to 19,821,161.73, 29,728,199.19 and 12,611,278.83

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Solution

The fourth proportional to 19,821,161.73, 29,728,199.19 and 12,611,278.83 is: 18,914,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821,161.73 : 29,728,199.19 = 12,611,278.83 : x
  2. Step 2: Convert to fraction form
    19,821,161.73/29,728,199.19 = 12,611,278.83/x
  3. Step 3: Cross multiply
    19,821,161.73x = 29,728,199.19 × 12,611,278.83
  4. Step 4: Simplify right side
    19,821,161.73x = 374,910,609,098,870.19
  5. Step 5: Solve for x
    x = 374,910,609,098,870.19/19,821,161.73
  6. Step 6: Final answer
    x = 18,914,663.74

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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.