Home / 120,494,968.16-166,286,563.58-68,282,267.72

Finding the Fourth Proportional to 120,494,968.16, 166,286,563.58 and 68,282,267.72

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Solution

The fourth proportional to 120,494,968.16, 166,286,563.58 and 68,282,267.72 is: 94,231,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,494,968.16 : 166,286,563.58 = 68,282,267.72 : x
  2. Step 2: Convert to fraction form
    120,494,968.16/166,286,563.58 = 68,282,267.72/x
  3. Step 3: Cross multiply
    120,494,968.16x = 166,286,563.58 × 68,282,267.72
  4. Step 4: Simplify right side
    120,494,968.16x = 11,354,423,651,435,518
  5. Step 5: Solve for x
    x = 11,354,423,651,435,518/120,494,968.16
  6. Step 6: Final answer
    x = 94,231,517.09

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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.