Home / 120,431,099.76-166,182,926.04-68,209,712.88

Finding the Fourth Proportional to 120,431,099.76, 166,182,926.04 and 68,209,712.88

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Solution

The fourth proportional to 120,431,099.76, 166,182,926.04 and 68,209,712.88 is: 94,122,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,431,099.76 : 166,182,926.04 = 68,209,712.88 : x
  2. Step 2: Convert to fraction form
    120,431,099.76/166,182,926.04 = 68,209,712.88/x
  3. Step 3: Cross multiply
    120,431,099.76x = 166,182,926.04 × 68,209,712.88
  4. Step 4: Simplify right side
    120,431,099.76x = 11,335,289,670,746,674
  5. Step 5: Solve for x
    x = 11,335,289,670,746,674/120,431,099.76
  6. Step 6: Final answer
    x = 94,122,611.96

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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.