Home / 68,691,872.20-102,949,334.70-52,656,032.20

Finding the Fourth Proportional to 68,691,872.20, 102,949,334.70 and 52,656,032.20

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Solution

The fourth proportional to 68,691,872.20, 102,949,334.70 and 52,656,032.20 is: 78,916,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,691,872.20 : 102,949,334.70 = 52,656,032.20 : x
  2. Step 2: Convert to fraction form
    68,691,872.20/102,949,334.70 = 52,656,032.20/x
  3. Step 3: Cross multiply
    68,691,872.20x = 102,949,334.70 × 52,656,032.20
  4. Step 4: Simplify right side
    68,691,872.20x = 5,420,903,482,931,778
  5. Step 5: Solve for x
    x = 5,420,903,482,931,778/68,691,872.20
  6. Step 6: Final answer
    x = 78,916,228.50

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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.