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Finding the Fourth Proportional to 68,371,769.80, 102,624,009.90 and 34,331,552.20

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Solution

The fourth proportional to 68,371,769.80, 102,624,009.90 and 34,331,552.20 is: 51,530,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,371,769.80 : 102,624,009.90 = 34,331,552.20 : x
  2. Step 2: Convert to fraction form
    68,371,769.80/102,624,009.90 = 34,331,552.20/x
  3. Step 3: Cross multiply
    68,371,769.80x = 102,624,009.90 × 34,331,552.20
  4. Step 4: Simplify right side
    68,371,769.80x = 3,523,241,552,855,167.50
  5. Step 5: Solve for x
    x = 3,523,241,552,855,167.50/68,371,769.80
  6. Step 6: Final answer
    x = 51,530,647.27

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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.