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Finding the Fourth Proportional to 66,764,907.52, 100,147,358.40 and 36,456,236.80

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Solution

The fourth proportional to 66,764,907.52, 100,147,358.40 and 36,456,236.80 is: 54,684,353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,764,907.52 : 100,147,358.40 = 36,456,236.80 : x
  2. Step 2: Convert to fraction form
    66,764,907.52/100,147,358.40 = 36,456,236.80/x
  3. Step 3: Cross multiply
    66,764,907.52x = 100,147,358.40 × 36,456,236.80
  4. Step 4: Simplify right side
    66,764,907.52x = 3,650,995,812,724,869
  5. Step 5: Solve for x
    x = 3,650,995,812,724,869/66,764,907.52
  6. Step 6: Final answer
    x = 54,684,353.63

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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.