Home / 13,760,556.87-18,988,445.34-8,101,756.83

Finding the Fourth Proportional to 13,760,556.87, 18,988,445.34 and 8,101,756.83

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Solution

The fourth proportional to 13,760,556.87, 18,988,445.34 and 8,101,756.83 is: 11,179,763.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760,556.87 : 18,988,445.34 = 8,101,756.83 : x
  2. Step 2: Convert to fraction form
    13,760,556.87/18,988,445.34 = 8,101,756.83/x
  3. Step 3: Cross multiply
    13,760,556.87x = 18,988,445.34 × 8,101,756.83
  4. Step 4: Simplify right side
    13,760,556.87x = 153,839,766,724,426.69
  5. Step 5: Solve for x
    x = 153,839,766,724,426.69/13,760,556.87
  6. Step 6: Final answer
    x = 11,179,763.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.