Home / 10,208,971.87-15,341,577.77-5,420,245.39

Finding the Fourth Proportional to 10,208,971.87, 15,341,577.77 and 5,420,245.39

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Solution

The fourth proportional to 10,208,971.87, 15,341,577.77 and 5,420,245.39 is: 8,145,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208,971.87 : 15,341,577.77 = 5,420,245.39 : x
  2. Step 2: Convert to fraction form
    10,208,971.87/15,341,577.77 = 5,420,245.39/x
  3. Step 3: Cross multiply
    10,208,971.87x = 15,341,577.77 × 5,420,245.39
  4. Step 4: Simplify right side
    10,208,971.87x = 83,155,116,183,168.97
  5. Step 5: Solve for x
    x = 83,155,116,183,168.97/10,208,971.87
  6. Step 6: Final answer
    x = 8,145,297.81

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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.