Home / 5,185,704.63-7,778,556.96-1,399,187.52

Finding the Fourth Proportional to 5,185,704.63, 7,778,556.96 and 1,399,187.52

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Solution

The fourth proportional to 5,185,704.63, 7,778,556.96 and 1,399,187.52 is: 2,098,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,704.63 : 7,778,556.96 = 1,399,187.52 : x
  2. Step 2: Convert to fraction form
    5,185,704.63/7,778,556.96 = 1,399,187.52/x
  3. Step 3: Cross multiply
    5,185,704.63x = 7,778,556.96 × 1,399,187.52
  4. Step 4: Simplify right side
    5,185,704.63x = 10,883,659,822,041.14
  5. Step 5: Solve for x
    x = 10,883,659,822,041.14/5,185,704.63
  6. Step 6: Final answer
    x = 2,098,781.28

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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.