Home / 57,093,274.08-78,786,610.74-30,987,231.36

Finding the Fourth Proportional to 57,093,274.08, 78,786,610.74 and 30,987,231.36

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Solution

The fourth proportional to 57,093,274.08, 78,786,610.74 and 30,987,231.36 is: 42,761,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,093,274.08 : 78,786,610.74 = 30,987,231.36 : x
  2. Step 2: Convert to fraction form
    57,093,274.08/78,786,610.74 = 30,987,231.36/x
  3. Step 3: Cross multiply
    57,093,274.08x = 78,786,610.74 × 30,987,231.36
  4. Step 4: Simplify right side
    57,093,274.08x = 2,441,378,935,070,640.50
  5. Step 5: Solve for x
    x = 2,441,378,935,070,640.50/57,093,274.08
  6. Step 6: Final answer
    x = 42,761,235.44

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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.