Home / 274,878,876.01-378,976,803.55-178,035,933.53

Finding the Fourth Proportional to 274,878,876.01, 378,976,803.55 and 178,035,933.53

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Solution

The fourth proportional to 274,878,876.01, 378,976,803.55 and 178,035,933.53 is: 245,458,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,878,876.01 : 378,976,803.55 = 178,035,933.53 : x
  2. Step 2: Convert to fraction form
    274,878,876.01/378,976,803.55 = 178,035,933.53/x
  3. Step 3: Cross multiply
    274,878,876.01x = 378,976,803.55 × 178,035,933.53
  4. Step 4: Simplify right side
    274,878,876.01x = 67,471,489,006,239,672
  5. Step 5: Solve for x
    x = 67,471,489,006,239,672/274,878,876.01
  6. Step 6: Final answer
    x = 245,458,981.74

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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.