Home / 18,591,727.80-27,887,591.70-12,545,110.20

Finding the Fourth Proportional to 18,591,727.80, 27,887,591.70 and 12,545,110.20

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Solution

The fourth proportional to 18,591,727.80, 27,887,591.70 and 12,545,110.20 is: 18,817,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591,727.80 : 27,887,591.70 = 12,545,110.20 : x
  2. Step 2: Convert to fraction form
    18,591,727.80/27,887,591.70 = 12,545,110.20/x
  3. Step 3: Cross multiply
    18,591,727.80x = 27,887,591.70 × 12,545,110.20
  4. Step 4: Simplify right side
    18,591,727.80x = 349,852,911,089,105.31
  5. Step 5: Solve for x
    x = 349,852,911,089,105.31/18,591,727.80
  6. Step 6: Final answer
    x = 18,817,665.30

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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.