Home / 10,419,904.80-15,629,857.20-3,688,999.20

Finding the Fourth Proportional to 10,419,904.80, 15,629,857.20 and 3,688,999.20

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Solution

The fourth proportional to 10,419,904.80, 15,629,857.20 and 3,688,999.20 is: 5,533,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419,904.80 : 15,629,857.20 = 3,688,999.20 : x
  2. Step 2: Convert to fraction form
    10,419,904.80/15,629,857.20 = 3,688,999.20/x
  3. Step 3: Cross multiply
    10,419,904.80x = 15,629,857.20 × 3,688,999.20
  4. Step 4: Simplify right side
    10,419,904.80x = 57,658,530,706,914.24
  5. Step 5: Solve for x
    x = 57,658,530,706,914.24/10,419,904.80
  6. Step 6: Final answer
    x = 5,533,498.80

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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.