Home / 12,476,987.20-18,715,480.80-3,021,371.20

Finding the Fourth Proportional to 12,476,987.20, 18,715,480.80 and 3,021,371.20

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Solution

The fourth proportional to 12,476,987.20, 18,715,480.80 and 3,021,371.20 is: 4,532,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,987.20 : 18,715,480.80 = 3,021,371.20 : x
  2. Step 2: Convert to fraction form
    12,476,987.20/18,715,480.80 = 3,021,371.20/x
  3. Step 3: Cross multiply
    12,476,987.20x = 18,715,480.80 × 3,021,371.20
  4. Step 4: Simplify right side
    12,476,987.20x = 56,546,414,683,272.97
  5. Step 5: Solve for x
    x = 56,546,414,683,272.97/12,476,987.20
  6. Step 6: Final answer
    x = 4,532,056.80

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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.