Home / 78,422,499.18-108,222,450.41-43,139,544.54

Finding the Fourth Proportional to 78,422,499.18, 108,222,450.41 and 43,139,544.54

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Solution

The fourth proportional to 78,422,499.18, 108,222,450.41 and 43,139,544.54 is: 59,532,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,422,499.18 : 108,222,450.41 = 43,139,544.54 : x
  2. Step 2: Convert to fraction form
    78,422,499.18/108,222,450.41 = 43,139,544.54/x
  3. Step 3: Cross multiply
    78,422,499.18x = 108,222,450.41 × 43,139,544.54
  4. Step 4: Simplify right side
    78,422,499.18x = 4,668,667,219,909,029
  5. Step 5: Solve for x
    x = 4,668,667,219,909,029/78,422,499.18
  6. Step 6: Final answer
    x = 59,532,242.26

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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.