Home / 7,988,950.80-11,989,331.10-5,292,379.80

Finding the Fourth Proportional to 7,988,950.80, 11,989,331.10 and 5,292,379.80

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Solution

The fourth proportional to 7,988,950.80, 11,989,331.10 and 5,292,379.80 is: 7,942,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988,950.80 : 11,989,331.10 = 5,292,379.80 : x
  2. Step 2: Convert to fraction form
    7,988,950.80/11,989,331.10 = 5,292,379.80/x
  3. Step 3: Cross multiply
    7,988,950.80x = 11,989,331.10 × 5,292,379.80
  4. Step 4: Simplify right side
    7,988,950.80x = 63,452,093,729,151.77
  5. Step 5: Solve for x
    x = 63,452,093,729,151.77/7,988,950.80
  6. Step 6: Final answer
    x = 7,942,481.47

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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.