Home / 39,930,054-55,103,474.48-21,595,339.48

Finding the Fourth Proportional to 39,930,054, 55,103,474.48 and 21,595,339.48

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Solution

The fourth proportional to 39,930,054, 55,103,474.48 and 21,595,339.48 is: 29,801,568.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930,054 : 55,103,474.48 = 21,595,339.48 : x
  2. Step 2: Convert to fraction form
    39,930,054/55,103,474.48 = 21,595,339.48/x
  3. Step 3: Cross multiply
    39,930,054x = 55,103,474.48 × 21,595,339.48
  4. Step 4: Simplify right side
    39,930,054x = 1,189,978,237,923,116.50
  5. Step 5: Solve for x
    x = 1,189,978,237,923,116.50/39,930,054
  6. Step 6: Final answer
    x = 29,801,568.46

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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.