Home / 120,394,784.40-166,146,979.24-68,194,622.76

Finding the Fourth Proportional to 120,394,784.40, 166,146,979.24 and 68,194,622.76

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Solution

The fourth proportional to 120,394,784.40, 166,146,979.24 and 68,194,622.76 is: 94,109,812.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,394,784.40 : 166,146,979.24 = 68,194,622.76 : x
  2. Step 2: Convert to fraction form
    120,394,784.40/166,146,979.24 = 68,194,622.76/x
  3. Step 3: Cross multiply
    120,394,784.40x = 166,146,979.24 × 68,194,622.76
  4. Step 4: Simplify right side
    120,394,784.40x = 11,330,330,571,447,544
  5. Step 5: Solve for x
    x = 11,330,330,571,447,544/120,394,784.40
  6. Step 6: Final answer
    x = 94,109,812.38

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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.