Home / 18,990,694.80-26,181,129.96-12,017,903.76

Finding the Fourth Proportional to 18,990,694.80, 26,181,129.96 and 12,017,903.76

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Solution

The fourth proportional to 18,990,694.80, 26,181,129.96 and 12,017,903.76 is: 16,568,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990,694.80 : 26,181,129.96 = 12,017,903.76 : x
  2. Step 2: Convert to fraction form
    18,990,694.80/26,181,129.96 = 12,017,903.76/x
  3. Step 3: Cross multiply
    18,990,694.80x = 26,181,129.96 × 12,017,903.76
  4. Step 4: Simplify right side
    18,990,694.80x = 314,642,300,187,332.62
  5. Step 5: Solve for x
    x = 314,642,300,187,332.62/18,990,694.80
  6. Step 6: Final answer
    x = 16,568,235.31

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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.