Home / 79,555,622.40-119,333,433.60-66,790,540.80

Finding the Fourth Proportional to 79,555,622.40, 119,333,433.60 and 66,790,540.80

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Solution

The fourth proportional to 79,555,622.40, 119,333,433.60 and 66,790,540.80 is: 100,185,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,555,622.40 : 119,333,433.60 = 66,790,540.80 : x
  2. Step 2: Convert to fraction form
    79,555,622.40/119,333,433.60 = 66,790,540.80/x
  3. Step 3: Cross multiply
    79,555,622.40x = 119,333,433.60 × 66,790,540.80
  4. Step 4: Simplify right side
    79,555,622.40x = 7,970,344,565,664,890
  5. Step 5: Solve for x
    x = 7,970,344,565,664,890/79,555,622.40
  6. Step 6: Final answer
    x = 100,185,811.20

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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.