Home / 160,268,121.78-221,167,837.62-89,703,711

Finding the Fourth Proportional to 160,268,121.78, 221,167,837.62 and 89,703,711

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Solution

The fourth proportional to 160,268,121.78, 221,167,837.62 and 89,703,711 is: 123,789,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,268,121.78 : 221,167,837.62 = 89,703,711 : x
  2. Step 2: Convert to fraction form
    160,268,121.78/221,167,837.62 = 89,703,711/x
  3. Step 3: Cross multiply
    160,268,121.78x = 221,167,837.62 × 89,703,711
  4. Step 4: Simplify right side
    160,268,121.78x = 19,839,575,788,359,408
  5. Step 5: Solve for x
    x = 19,839,575,788,359,408/160,268,121.78
  6. Step 6: Final answer
    x = 123,789,906.36

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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.