Home / 18,855,807.27-28,272,136.01-7,327,813.83

Finding the Fourth Proportional to 18,855,807.27, 28,272,136.01 and 7,327,813.83

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Solution

The fourth proportional to 18,855,807.27, 28,272,136.01 and 7,327,813.83 is: 10,987,222.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855,807.27 : 28,272,136.01 = 7,327,813.83 : x
  2. Step 2: Convert to fraction form
    18,855,807.27/28,272,136.01 = 7,327,813.83/x
  3. Step 3: Cross multiply
    18,855,807.27x = 28,272,136.01 × 7,327,813.83
  4. Step 4: Simplify right side
    18,855,807.27x = 207,172,949,221,079.94
  5. Step 5: Solve for x
    x = 207,172,949,221,079.94/18,855,807.27
  6. Step 6: Final answer
    x = 10,987,222.46

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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.