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Finding the Fourth Proportional to 68,110,868.20, 102,166,302.30 and 20,241,812.20

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Solution

The fourth proportional to 68,110,868.20, 102,166,302.30 and 20,241,812.20 is: 30,362,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,110,868.20 : 102,166,302.30 = 20,241,812.20 : x
  2. Step 2: Convert to fraction form
    68,110,868.20/102,166,302.30 = 20,241,812.20/x
  3. Step 3: Cross multiply
    68,110,868.20x = 102,166,302.30 × 20,241,812.20
  4. Step 4: Simplify right side
    68,110,868.20x = 2,068,031,104,325,028
  5. Step 5: Solve for x
    x = 2,068,031,104,325,028/68,110,868.20
  6. Step 6: Final answer
    x = 30,362,718.30

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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.