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Finding the Fourth Proportional to 8,321,296.80, 12,472,114.80 and 3,528,976.80

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Solution

The fourth proportional to 8,321,296.80, 12,472,114.80 and 3,528,976.80 is: 5,289,296.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,296.80 : 12,472,114.80 = 3,528,976.80 : x
  2. Step 2: Convert to fraction form
    8,321,296.80/12,472,114.80 = 3,528,976.80/x
  3. Step 3: Cross multiply
    8,321,296.80x = 12,472,114.80 × 3,528,976.80
  4. Step 4: Simplify right side
    8,321,296.80x = 44,013,803,776,136.64
  5. Step 5: Solve for x
    x = 44,013,803,776,136.64/8,321,296.80
  6. Step 6: Final answer
    x = 5,289,296.23

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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.