Home / 68,099,002.20-102,148,503.30-40,836,078.90

Finding the Fourth Proportional to 68,099,002.20, 102,148,503.30 and 40,836,078.90

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Solution

The fourth proportional to 68,099,002.20, 102,148,503.30 and 40,836,078.90 is: 61,254,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,099,002.20 : 102,148,503.30 = 40,836,078.90 : x
  2. Step 2: Convert to fraction form
    68,099,002.20/102,148,503.30 = 40,836,078.90/x
  3. Step 3: Cross multiply
    68,099,002.20x = 102,148,503.30 × 40,836,078.90
  4. Step 4: Simplify right side
    68,099,002.20x = 4,171,344,340,275,710
  5. Step 5: Solve for x
    x = 4,171,344,340,275,710/68,099,002.20
  6. Step 6: Final answer
    x = 61,254,118.35

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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.