Home / 12,543,721.80-18,802,873.80-8,500,614.90

Finding the Fourth Proportional to 12,543,721.80, 18,802,873.80 and 8,500,614.90

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Solution

The fourth proportional to 12,543,721.80, 18,802,873.80 and 8,500,614.90 is: 12,742,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543,721.80 : 18,802,873.80 = 8,500,614.90 : x
  2. Step 2: Convert to fraction form
    12,543,721.80/18,802,873.80 = 8,500,614.90/x
  3. Step 3: Cross multiply
    12,543,721.80x = 18,802,873.80 × 8,500,614.90
  4. Step 4: Simplify right side
    12,543,721.80x = 159,835,989,187,099.62
  5. Step 5: Solve for x
    x = 159,835,989,187,099.62/12,543,721.80
  6. Step 6: Final answer
    x = 12,742,309.80

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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.