Home / 63,170,832,145.68-87,185,104,786.80-39,998,199,585.78

Finding the Fourth Proportional to 63,170,832,145.68, 87,185,104,786.80 and 39,998,199,585.78

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Solution

The fourth proportional to 63,170,832,145.68, 87,185,104,786.80 and 39,998,199,585.78 is: 55,203,439,684.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,170,832,145.68 : 87,185,104,786.80 = 39,998,199,585.78 : x
  2. Step 2: Convert to fraction form
    63,170,832,145.68/87,185,104,786.80 = 39,998,199,585.78/x
  3. Step 3: Cross multiply
    63,170,832,145.68x = 87,185,104,786.80 × 39,998,199,585.78
  4. Step 4: Simplify right side
    63,170,832,145.68x = 3,487,247,222,169,569,591,296
  5. Step 5: Solve for x
    x = 3,487,247,222,169,569,591,296/63,170,832,145.68
  6. Step 6: Final answer
    x = 55,203,439,684.43

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Double scale
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1.5x scale

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.