Home / 159,231,100-219,760,029.84-89,629,990.24

Finding the Fourth Proportional to 159,231,100, 219,760,029.84 and 89,629,990.24

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Solution

The fourth proportional to 159,231,100, 219,760,029.84 and 89,629,990.24 is: 123,701,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,231,100 : 219,760,029.84 = 89,629,990.24 : x
  2. Step 2: Convert to fraction form
    159,231,100/219,760,029.84 = 89,629,990.24/x
  3. Step 3: Cross multiply
    159,231,100x = 219,760,029.84 × 89,629,990.24
  4. Step 4: Simplify right side
    159,231,100x = 19,697,089,329,701,308
  5. Step 5: Solve for x
    x = 19,697,089,329,701,308/159,231,100
  6. Step 6: Final answer
    x = 123,701,270.23

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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.