Home / 18,153,480.80-27,192,896.40-12,480,111.20

Finding the Fourth Proportional to 18,153,480.80, 27,192,896.40 and 12,480,111.20

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Solution

The fourth proportional to 18,153,480.80, 27,192,896.40 and 12,480,111.20 is: 18,694,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153,480.80 : 27,192,896.40 = 12,480,111.20 : x
  2. Step 2: Convert to fraction form
    18,153,480.80/27,192,896.40 = 12,480,111.20/x
  3. Step 3: Cross multiply
    18,153,480.80x = 27,192,896.40 × 12,480,111.20
  4. Step 4: Simplify right side
    18,153,480.80x = 339,370,370,922,079.62
  5. Step 5: Solve for x
    x = 339,370,370,922,079.62/18,153,480.80
  6. Step 6: Final answer
    x = 18,694,506.84

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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.