Home / 256,591,278.77-381,586,136.12-248,419,044.78

Finding the Fourth Proportional to 256,591,278.77, 381,586,136.12 and 248,419,044.78

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Solution

The fourth proportional to 256,591,278.77, 381,586,136.12 and 248,419,044.78 is: 369,432,912.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,591,278.77 : 381,586,136.12 = 248,419,044.78 : x
  2. Step 2: Convert to fraction form
    256,591,278.77/381,586,136.12 = 248,419,044.78/x
  3. Step 3: Cross multiply
    256,591,278.77x = 381,586,136.12 × 248,419,044.78
  4. Step 4: Simplify right side
    256,591,278.77x = 94,793,263,434,979,360
  5. Step 5: Solve for x
    x = 94,793,263,434,979,360/256,591,278.77
  6. Step 6: Final answer
    x = 369,432,912.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.