Home / 193,992,418.20-291,100,601.70-72,836,117.40

Finding the Fourth Proportional to 193,992,418.20, 291,100,601.70 and 72,836,117.40

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Solution

The fourth proportional to 193,992,418.20, 291,100,601.70 and 72,836,117.40 is: 109,296,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,992,418.20 : 291,100,601.70 = 72,836,117.40 : x
  2. Step 2: Convert to fraction form
    193,992,418.20/291,100,601.70 = 72,836,117.40/x
  3. Step 3: Cross multiply
    193,992,418.20x = 291,100,601.70 × 72,836,117.40
  4. Step 4: Simplify right side
    193,992,418.20x = 21,202,637,600,631,840
  5. Step 5: Solve for x
    x = 21,202,637,600,631,840/193,992,418.20
  6. Step 6: Final answer
    x = 109,296,217.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.