Home / 12,787,561.96-19,168,418.27-5,505,771.51

Finding the Fourth Proportional to 12,787,561.96, 19,168,418.27 and 5,505,771.51

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Solution

The fourth proportional to 12,787,561.96, 19,168,418.27 and 5,505,771.51 is: 8,253,092.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787,561.96 : 19,168,418.27 = 5,505,771.51 : x
  2. Step 2: Convert to fraction form
    12,787,561.96/19,168,418.27 = 5,505,771.51/x
  3. Step 3: Cross multiply
    12,787,561.96x = 19,168,418.27 × 5,505,771.51
  4. Step 4: Simplify right side
    12,787,561.96x = 105,536,931,216,493.92
  5. Step 5: Solve for x
    x = 105,536,931,216,493.92/12,787,561.96
  6. Step 6: Final answer
    x = 8,253,092.46

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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.