Home / 120,722,270,473.19-166,591,882,886.10-65,788,276,984.25

Finding the Fourth Proportional to 120,722,270,473.19, 166,591,882,886.10 and 65,788,276,984.25

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Solution

The fourth proportional to 120,722,270,473.19, 166,591,882,886.10 and 65,788,276,984.25 is: 90,785,179,003.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,722,270,473.19 : 166,591,882,886.10 = 65,788,276,984.25 : x
  2. Step 2: Convert to fraction form
    120,722,270,473.19/166,591,882,886.10 = 65,788,276,984.25/x
  3. Step 3: Cross multiply
    120,722,270,473.19x = 166,591,882,886.10 × 65,788,276,984.25
  4. Step 4: Simplify right side
    120,722,270,473.19x = 10,959,792,934,637,652,672,512
  5. Step 5: Solve for x
    x = 10,959,792,934,637,652,672,512/120,722,270,473.19
  6. Step 6: Final answer
    x = 90,785,179,003.67

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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.