Home / 21,981,813.68-30,338,535.35-12,195,410.83

Finding the Fourth Proportional to 21,981,813.68, 30,338,535.35 and 12,195,410.83

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Solution

The fourth proportional to 21,981,813.68, 30,338,535.35 and 12,195,410.83 is: 16,831,682.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981,813.68 : 30,338,535.35 = 12,195,410.83 : x
  2. Step 2: Convert to fraction form
    21,981,813.68/30,338,535.35 = 12,195,410.83/x
  3. Step 3: Cross multiply
    21,981,813.68x = 30,338,535.35 × 12,195,410.83
  4. Step 4: Simplify right side
    21,981,813.68x = 369,990,902,528,370.06
  5. Step 5: Solve for x
    x = 369,990,902,528,370.06/21,981,813.68
  6. Step 6: Final answer
    x = 16,831,682.22

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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.