Home / 21,870,874.80-30,181,256.10-12,080,550.60

Finding the Fourth Proportional to 21,870,874.80, 30,181,256.10 and 12,080,550.60

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Solution

The fourth proportional to 21,870,874.80, 30,181,256.10 and 12,080,550.60 is: 16,670,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,874.80 : 30,181,256.10 = 12,080,550.60 : x
  2. Step 2: Convert to fraction form
    21,870,874.80/30,181,256.10 = 12,080,550.60/x
  3. Step 3: Cross multiply
    21,870,874.80x = 30,181,256.10 × 12,080,550.60
  4. Step 4: Simplify right side
    21,870,874.80x = 364,606,191,487,608.69
  5. Step 5: Solve for x
    x = 364,606,191,487,608.69/21,870,874.80
  6. Step 6: Final answer
    x = 16,670,855.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.