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Finding the Fourth Proportional to 1,303,016,343.60, 1,798,149,885.12 and 969,978,195.12

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Solution

The fourth proportional to 1,303,016,343.60, 1,798,149,885.12 and 969,978,195.12 is: 1,338,560,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,016,343.60 : 1,798,149,885.12 = 969,978,195.12 : x
  2. Step 2: Convert to fraction form
    1,303,016,343.60/1,798,149,885.12 = 969,978,195.12/x
  3. Step 3: Cross multiply
    1,303,016,343.60x = 1,798,149,885.12 × 969,978,195.12
  4. Step 4: Simplify right side
    1,303,016,343.60x = 1,744,166,180,123,932,928
  5. Step 5: Solve for x
    x = 1,744,166,180,123,932,928/1,303,016,343.60
  6. Step 6: Final answer
    x = 1,338,560,478.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.