Home / 120,299,522.09-166,008,895.11-65,294,197.61

Finding the Fourth Proportional to 120,299,522.09, 166,008,895.11 and 65,294,197.61

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Solution

The fourth proportional to 120,299,522.09, 166,008,895.11 and 65,294,197.61 is: 90,103,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,299,522.09 : 166,008,895.11 = 65,294,197.61 : x
  2. Step 2: Convert to fraction form
    120,299,522.09/166,008,895.11 = 65,294,197.61/x
  3. Step 3: Cross multiply
    120,299,522.09x = 166,008,895.11 × 65,294,197.61
  4. Step 4: Simplify right side
    120,299,522.09x = 10,839,417,601,500,058
  5. Step 5: Solve for x
    x = 10,839,417,601,500,058/120,299,522.09
  6. Step 6: Final answer
    x = 90,103,579.91

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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.