Home / 18,379,412.30-27,577,975.80-12,976,428.80

Finding the Fourth Proportional to 18,379,412.30, 27,577,975.80 and 12,976,428.80

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Solution

The fourth proportional to 18,379,412.30, 27,577,975.80 and 12,976,428.80 is: 19,470,896.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,412.30 : 27,577,975.80 = 12,976,428.80 : x
  2. Step 2: Convert to fraction form
    18,379,412.30/27,577,975.80 = 12,976,428.80/x
  3. Step 3: Cross multiply
    18,379,412.30x = 27,577,975.80 × 12,976,428.80
  4. Step 4: Simplify right side
    18,379,412.30x = 357,863,639,416,823.06
  5. Step 5: Solve for x
    x = 357,863,639,416,823.06/18,379,412.30
  6. Step 6: Final answer
    x = 19,470,896.76

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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.