Home / 120,722,270,451.38-166,591,882,856.07-65,788,276,962.47

Finding the Fourth Proportional to 120,722,270,451.38, 166,591,882,856.07 and 65,788,276,962.47

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Solution

The fourth proportional to 120,722,270,451.38, 166,591,882,856.07 and 65,788,276,962.47 is: 90,785,178,973.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,722,270,451.38 : 166,591,882,856.07 = 65,788,276,962.47 : x
  2. Step 2: Convert to fraction form
    120,722,270,451.38/166,591,882,856.07 = 65,788,276,962.47/x
  3. Step 3: Cross multiply
    120,722,270,451.38x = 166,591,882,856.07 × 65,788,276,962.47
  4. Step 4: Simplify right side
    120,722,270,451.38x = 10,959,792,929,033,657,778,176
  5. Step 5: Solve for x
    x = 10,959,792,929,033,657,778,176/120,722,270,451.38
  6. Step 6: Final answer
    x = 90,785,178,973.65

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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.