Home / 14,490,121.69-19,988,380.42-11,769,143.77

Finding the Fourth Proportional to 14,490,121.69, 19,988,380.42 and 11,769,143.77

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Solution

The fourth proportional to 14,490,121.69, 19,988,380.42 and 11,769,143.77 is: 16,234,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490,121.69 : 19,988,380.42 = 11,769,143.77 : x
  2. Step 2: Convert to fraction form
    14,490,121.69/19,988,380.42 = 11,769,143.77/x
  3. Step 3: Cross multiply
    14,490,121.69x = 19,988,380.42 × 11,769,143.77
  4. Step 4: Simplify right side
    14,490,121.69x = 235,246,122,892,433
  5. Step 5: Solve for x
    x = 235,246,122,892,433/14,490,121.69
  6. Step 6: Final answer
    x = 16,234,930.80

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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.