Home / 220,901,134,118.55-304,851,086,736.84-128,194,810,961.64

Finding the Fourth Proportional to 220,901,134,118.55, 304,851,086,736.84 and 128,194,810,961.64

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Solution

The fourth proportional to 220,901,134,118.55, 304,851,086,736.84 and 128,194,810,961.64 is: 176,913,204,142.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,901,134,118.55 : 304,851,086,736.84 = 128,194,810,961.64 : x
  2. Step 2: Convert to fraction form
    220,901,134,118.55/304,851,086,736.84 = 128,194,810,961.64/x
  3. Step 3: Cross multiply
    220,901,134,118.55x = 304,851,086,736.84 × 128,194,810,961.64
  4. Step 4: Simplify right side
    220,901,134,118.55x = 39,080,327,435,679,726,305,280
  5. Step 5: Solve for x
    x = 39,080,327,435,679,726,305,280/220,901,134,118.55
  6. Step 6: Final answer
    x = 176,913,204,142.75

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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.