Home / 5,315,816.80-7,974,891.60-1,721,749.60

Finding the Fourth Proportional to 5,315,816.80, 7,974,891.60 and 1,721,749.60

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Solution

The fourth proportional to 5,315,816.80, 7,974,891.60 and 1,721,749.60 is: 2,583,002.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,816.80 : 7,974,891.60 = 1,721,749.60 : x
  2. Step 2: Convert to fraction form
    5,315,816.80/7,974,891.60 = 1,721,749.60/x
  3. Step 3: Cross multiply
    5,315,816.80x = 7,974,891.60 × 1,721,749.60
  4. Step 4: Simplify right side
    5,315,816.80x = 13,730,766,422,343.36
  5. Step 5: Solve for x
    x = 13,730,766,422,343.36/5,315,816.80
  6. Step 6: Final answer
    x = 2,583,002.19

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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.