Home / 256,608,163.20-384,912,244.80-103,364,198.40

Finding the Fourth Proportional to 256,608,163.20, 384,912,244.80 and 103,364,198.40

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Solution

The fourth proportional to 256,608,163.20, 384,912,244.80 and 103,364,198.40 is: 155,046,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,608,163.20 : 384,912,244.80 = 103,364,198.40 : x
  2. Step 2: Convert to fraction form
    256,608,163.20/384,912,244.80 = 103,364,198.40/x
  3. Step 3: Cross multiply
    256,608,163.20x = 384,912,244.80 × 103,364,198.40
  4. Step 4: Simplify right side
    256,608,163.20x = 39,786,145,638,096,568
  5. Step 5: Solve for x
    x = 39,786,145,638,096,568/256,608,163.20
  6. Step 6: Final answer
    x = 155,046,297.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.