Home / 458,431,357.86-687,647,250.09-147,538,930.14

Finding the Fourth Proportional to 458,431,357.86, 687,647,250.09 and 147,538,930.14

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Solution

The fourth proportional to 458,431,357.86, 687,647,250.09 and 147,538,930.14 is: 221,308,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,431,357.86 : 687,647,250.09 = 147,538,930.14 : x
  2. Step 2: Convert to fraction form
    458,431,357.86/687,647,250.09 = 147,538,930.14/x
  3. Step 3: Cross multiply
    458,431,357.86x = 687,647,250.09 × 147,538,930.14
  4. Step 4: Simplify right side
    458,431,357.86x = 101,454,739,591,991,616
  5. Step 5: Solve for x
    x = 101,454,739,591,991,616/458,431,357.86
  6. Step 6: Final answer
    x = 221,308,463.86

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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.