Home / 120,297,992.72-166,011,549.44-65,293,849.20

Finding the Fourth Proportional to 120,297,992.72, 166,011,549.44 and 65,293,849.20

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Solution

The fourth proportional to 120,297,992.72, 166,011,549.44 and 65,293,849.20 is: 90,105,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,297,992.72 : 166,011,549.44 = 65,293,849.20 : x
  2. Step 2: Convert to fraction form
    120,297,992.72/166,011,549.44 = 65,293,849.20/x
  3. Step 3: Cross multiply
    120,297,992.72x = 166,011,549.44 × 65,293,849.20
  4. Step 4: Simplify right side
    120,297,992.72x = 10,839,533,074,593,704
  5. Step 5: Solve for x
    x = 10,839,533,074,593,704/120,297,992.72
  6. Step 6: Final answer
    x = 90,105,685.30

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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.