Home / 12,381,731.04-18,489,217.80-10,111,758.54

Finding the Fourth Proportional to 12,381,731.04, 18,489,217.80 and 10,111,758.54

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Solution

The fourth proportional to 12,381,731.04, 18,489,217.80 and 10,111,758.54 is: 15,099,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,731.04 : 18,489,217.80 = 10,111,758.54 : x
  2. Step 2: Convert to fraction form
    12,381,731.04/18,489,217.80 = 10,111,758.54/x
  3. Step 3: Cross multiply
    12,381,731.04x = 18,489,217.80 × 10,111,758.54
  4. Step 4: Simplify right side
    12,381,731.04x = 186,958,505,987,070
  5. Step 5: Solve for x
    x = 186,958,505,987,070/12,381,731.04
  6. Step 6: Final answer
    x = 15,099,545.08

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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.