Home / 81,256,693.70-121,856,697-35,793,687.62

Finding the Fourth Proportional to 81,256,693.70, 121,856,697 and 35,793,687.62

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Solution

The fourth proportional to 81,256,693.70, 121,856,697 and 35,793,687.62 is: 53,678,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,256,693.70 : 121,856,697 = 35,793,687.62 : x
  2. Step 2: Convert to fraction form
    81,256,693.70/121,856,697 = 35,793,687.62/x
  3. Step 3: Cross multiply
    81,256,693.70x = 121,856,697 × 35,793,687.62
  4. Step 4: Simplify right side
    81,256,693.70x = 4,361,700,546,822,991
  5. Step 5: Solve for x
    x = 4,361,700,546,822,991/81,256,693.70
  6. Step 6: Final answer
    x = 53,678,046.06

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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.