Home / 12,590,971.20-18,858,463.20-9,741,844.80

Finding the Fourth Proportional to 12,590,971.20, 18,858,463.20 and 9,741,844.80

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Solution

The fourth proportional to 12,590,971.20, 18,858,463.20 and 9,741,844.80 is: 14,591,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,971.20 : 18,858,463.20 = 9,741,844.80 : x
  2. Step 2: Convert to fraction form
    12,590,971.20/18,858,463.20 = 9,741,844.80/x
  3. Step 3: Cross multiply
    12,590,971.20x = 18,858,463.20 × 9,741,844.80
  4. Step 4: Simplify right side
    12,590,971.20x = 183,716,221,660,911.38
  5. Step 5: Solve for x
    x = 183,716,221,660,911.38/12,590,971.20
  6. Step 6: Final answer
    x = 14,591,108.08

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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.