Home / 120,722,270,472.45-166,591,882,885.07-65,788,276,983.50

Finding the Fourth Proportional to 120,722,270,472.45, 166,591,882,885.07 and 65,788,276,983.50

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Solution

The fourth proportional to 120,722,270,472.45, 166,591,882,885.07 and 65,788,276,983.50 is: 90,785,179,002.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,722,270,472.45 : 166,591,882,885.07 = 65,788,276,983.50 : x
  2. Step 2: Convert to fraction form
    120,722,270,472.45/166,591,882,885.07 = 65,788,276,983.50/x
  3. Step 3: Cross multiply
    120,722,270,472.45x = 166,591,882,885.07 × 65,788,276,983.50
  4. Step 4: Simplify right side
    120,722,270,472.45x = 10,959,792,934,445,777,944,576
  5. Step 5: Solve for x
    x = 10,959,792,934,445,777,944,576/120,722,270,472.45
  6. Step 6: Final answer
    x = 90,785,179,002.63

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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.