Home / 21,620,792,900.92-29,839,826,638.38-12,105,957,824.68

Finding the Fourth Proportional to 21,620,792,900.92, 29,839,826,638.38 and 12,105,957,824.68

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Solution

The fourth proportional to 21,620,792,900.92, 29,839,826,638.38 and 12,105,957,824.68 is: 16,707,975,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620,792,900.92 : 29,839,826,638.38 = 12,105,957,824.68 : x
  2. Step 2: Convert to fraction form
    21,620,792,900.92/29,839,826,638.38 = 12,105,957,824.68/x
  3. Step 3: Cross multiply
    21,620,792,900.92x = 29,839,826,638.38 × 12,105,957,824.68
  4. Step 4: Simplify right side
    21,620,792,900.92x = 361,239,682,779,991,113,728
  5. Step 5: Solve for x
    x = 361,239,682,779,991,113,728/21,620,792,900.92
  6. Step 6: Final answer
    x = 16,707,975,717.42

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1.5x scale

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.