Home / 12,479,097.40-18,706,245.80-8,684,608.66

Finding the Fourth Proportional to 12,479,097.40, 18,706,245.80 and 8,684,608.66

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Solution

The fourth proportional to 12,479,097.40, 18,706,245.80 and 8,684,608.66 is: 13,018,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,097.40 : 18,706,245.80 = 8,684,608.66 : x
  2. Step 2: Convert to fraction form
    12,479,097.40/18,706,245.80 = 8,684,608.66/x
  3. Step 3: Cross multiply
    12,479,097.40x = 18,706,245.80 × 8,684,608.66
  4. Step 4: Simplify right side
    12,479,097.40x = 162,456,424,270,768.62
  5. Step 5: Solve for x
    x = 162,456,424,270,768.62/12,479,097.40
  6. Step 6: Final answer
    x = 13,018,283.22

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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.