Home / 5,214,869.40-7,821,915.30-2,181,451.80

Finding the Fourth Proportional to 5,214,869.40, 7,821,915.30 and 2,181,451.80

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Solution

The fourth proportional to 5,214,869.40, 7,821,915.30 and 2,181,451.80 is: 3,272,015.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214,869.40 : 7,821,915.30 = 2,181,451.80 : x
  2. Step 2: Convert to fraction form
    5,214,869.40/7,821,915.30 = 2,181,451.80/x
  3. Step 3: Cross multiply
    5,214,869.40x = 7,821,915.30 × 2,181,451.80
  4. Step 4: Simplify right side
    5,214,869.40x = 17,063,131,210,632.54
  5. Step 5: Solve for x
    x = 17,063,131,210,632.54/5,214,869.40
  6. Step 6: Final answer
    x = 3,272,015.06

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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.