Home / 18,153,486.80-27,192,905.40-12,480,117.20

Finding the Fourth Proportional to 18,153,486.80, 27,192,905.40 and 12,480,117.20

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Solution

The fourth proportional to 18,153,486.80, 27,192,905.40 and 12,480,117.20 is: 18,694,515.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153,486.80 : 27,192,905.40 = 12,480,117.20 : x
  2. Step 2: Convert to fraction form
    18,153,486.80/27,192,905.40 = 12,480,117.20/x
  3. Step 3: Cross multiply
    18,153,486.80x = 27,192,905.40 × 12,480,117.20
  4. Step 4: Simplify right side
    18,153,486.80x = 339,370,646,400,512.81
  5. Step 5: Solve for x
    x = 339,370,646,400,512.81/18,153,486.80
  6. Step 6: Final answer
    x = 18,694,515.83

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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.