Home / 13,824,005.20-20,736,007.80-12,729,144.40

Finding the Fourth Proportional to 13,824,005.20, 20,736,007.80 and 12,729,144.40

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Solution

The fourth proportional to 13,824,005.20, 20,736,007.80 and 12,729,144.40 is: 19,093,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824,005.20 : 20,736,007.80 = 12,729,144.40 : x
  2. Step 2: Convert to fraction form
    13,824,005.20/20,736,007.80 = 12,729,144.40/x
  3. Step 3: Cross multiply
    13,824,005.20x = 20,736,007.80 × 12,729,144.40
  4. Step 4: Simplify right side
    13,824,005.20x = 263,951,637,565,726.34
  5. Step 5: Solve for x
    x = 263,951,637,565,726.34/13,824,005.20
  6. Step 6: Final answer
    x = 19,093,716.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.