Home / 278,471,489.22-384,268,125.33-161,004,356.10

Finding the Fourth Proportional to 278,471,489.22, 384,268,125.33 and 161,004,356.10

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Solution

The fourth proportional to 278,471,489.22, 384,268,125.33 and 161,004,356.10 is: 222,172,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,471,489.22 : 384,268,125.33 = 161,004,356.10 : x
  2. Step 2: Convert to fraction form
    278,471,489.22/384,268,125.33 = 161,004,356.10/x
  3. Step 3: Cross multiply
    278,471,489.22x = 384,268,125.33 × 161,004,356.10
  4. Step 4: Simplify right side
    278,471,489.22x = 61,868,842,088,510,744
  5. Step 5: Solve for x
    x = 61,868,842,088,510,744/278,471,489.22
  6. Step 6: Final answer
    x = 222,172,985.33

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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.