Home / 274,192,956.71-378,386,280.26-156,720,809.23

Finding the Fourth Proportional to 274,192,956.71, 378,386,280.26 and 156,720,809.23

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Solution

The fourth proportional to 274,192,956.71, 378,386,280.26 and 156,720,809.23 is: 216,274,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,192,956.71 : 378,386,280.26 = 156,720,809.23 : x
  2. Step 2: Convert to fraction form
    274,192,956.71/378,386,280.26 = 156,720,809.23/x
  3. Step 3: Cross multiply
    274,192,956.71x = 378,386,280.26 × 156,720,809.23
  4. Step 4: Simplify right side
    274,192,956.71x = 59,301,004,043,876,768
  5. Step 5: Solve for x
    x = 59,301,004,043,876,768/274,192,956.71
  6. Step 6: Final answer
    x = 216,274,716.74

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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.