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Finding the Fourth Proportional to 262,681,553.60, 393,986,560.80 and 68,608,145.60

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Solution

The fourth proportional to 262,681,553.60, 393,986,560.80 and 68,608,145.60 is: 102,902,875.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,681,553.60 : 393,986,560.80 = 68,608,145.60 : x
  2. Step 2: Convert to fraction form
    262,681,553.60/393,986,560.80 = 68,608,145.60/x
  3. Step 3: Cross multiply
    262,681,553.60x = 393,986,560.80 × 68,608,145.60
  4. Step 4: Simplify right side
    262,681,553.60x = 27,030,687,327,809,652
  5. Step 5: Solve for x
    x = 27,030,687,327,809,652/262,681,553.60
  6. Step 6: Final answer
    x = 102,902,875.96

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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.