Home / 14,346,782-21,428,737.97-12,978,450.62

Finding the Fourth Proportional to 14,346,782, 21,428,737.97 and 12,978,450.62

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Solution

The fourth proportional to 14,346,782, 21,428,737.97 and 12,978,450.62 is: 19,384,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346,782 : 21,428,737.97 = 12,978,450.62 : x
  2. Step 2: Convert to fraction form
    14,346,782/21,428,737.97 = 12,978,450.62/x
  3. Step 3: Cross multiply
    14,346,782x = 21,428,737.97 × 12,978,450.62
  4. Step 4: Simplify right side
    14,346,782x = 278,111,817,527,671.78
  5. Step 5: Solve for x
    x = 278,111,817,527,671.78/14,346,782
  6. Step 6: Final answer
    x = 19,384,961.56

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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.