Home / 14,346,781.50-21,428,737.22-12,978,450.12

Finding the Fourth Proportional to 14,346,781.50, 21,428,737.22 and 12,978,450.12

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Solution

The fourth proportional to 14,346,781.50, 21,428,737.22 and 12,978,450.12 is: 19,384,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346,781.50 : 21,428,737.22 = 12,978,450.12 : x
  2. Step 2: Convert to fraction form
    14,346,781.50/21,428,737.22 = 12,978,450.12/x
  3. Step 3: Cross multiply
    14,346,781.50x = 21,428,737.22 × 12,978,450.12
  4. Step 4: Simplify right side
    14,346,781.50x = 278,111,797,144,357.44
  5. Step 5: Solve for x
    x = 278,111,797,144,357.44/14,346,781.50
  6. Step 6: Final answer
    x = 19,384,960.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.