Home / 80,851,605.90-121,277,408.85-68,097,021.90

Finding the Fourth Proportional to 80,851,605.90, 121,277,408.85 and 68,097,021.90

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Solution

The fourth proportional to 80,851,605.90, 121,277,408.85 and 68,097,021.90 is: 102,145,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,851,605.90 : 121,277,408.85 = 68,097,021.90 : x
  2. Step 2: Convert to fraction form
    80,851,605.90/121,277,408.85 = 68,097,021.90/x
  3. Step 3: Cross multiply
    80,851,605.90x = 121,277,408.85 × 68,097,021.90
  4. Step 4: Simplify right side
    80,851,605.90x = 8,258,630,366,433,704
  5. Step 5: Solve for x
    x = 8,258,630,366,433,704/80,851,605.90
  6. Step 6: Final answer
    x = 102,145,532.85

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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.