Home / 201,422,614,633.20-278,088,653,110.95-128,220,148,844.46

Finding the Fourth Proportional to 201,422,614,633.20, 278,088,653,110.95 and 128,220,148,844.46

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Solution

The fourth proportional to 201,422,614,633.20, 278,088,653,110.95 and 128,220,148,844.46 is: 177,023,660,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,422,614,633.20 : 278,088,653,110.95 = 128,220,148,844.46 : x
  2. Step 2: Convert to fraction form
    201,422,614,633.20/278,088,653,110.95 = 128,220,148,844.46/x
  3. Step 3: Cross multiply
    201,422,614,633.20x = 278,088,653,110.95 × 128,220,148,844.46
  4. Step 4: Simplify right side
    201,422,614,633.20x = 35,656,568,493,841,416,454,144
  5. Step 5: Solve for x
    x = 35,656,568,493,841,416,454,144/201,422,614,633.20
  6. Step 6: Final answer
    x = 177,023,660,221.94

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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.