Home / 78,639,765.40-117,959,648.10-44,202,388.60

Finding the Fourth Proportional to 78,639,765.40, 117,959,648.10 and 44,202,388.60

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Solution

The fourth proportional to 78,639,765.40, 117,959,648.10 and 44,202,388.60 is: 66,303,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,639,765.40 : 117,959,648.10 = 44,202,388.60 : x
  2. Step 2: Convert to fraction form
    78,639,765.40/117,959,648.10 = 44,202,388.60/x
  3. Step 3: Cross multiply
    78,639,765.40x = 117,959,648.10 × 44,202,388.60
  4. Step 4: Simplify right side
    78,639,765.40x = 5,214,098,204,435,452
  5. Step 5: Solve for x
    x = 5,214,098,204,435,452/78,639,765.40
  6. Step 6: Final answer
    x = 66,303,582.90

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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.