Home / 1,389,704,082.20-2,084,556,123.30-469,567,134.80

Finding the Fourth Proportional to 1,389,704,082.20, 2,084,556,123.30 and 469,567,134.80

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Solution

The fourth proportional to 1,389,704,082.20, 2,084,556,123.30 and 469,567,134.80 is: 704,350,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,704,082.20 : 2,084,556,123.30 = 469,567,134.80 : x
  2. Step 2: Convert to fraction form
    1,389,704,082.20/2,084,556,123.30 = 469,567,134.80/x
  3. Step 3: Cross multiply
    1,389,704,082.20x = 2,084,556,123.30 × 469,567,134.80
  4. Step 4: Simplify right side
    1,389,704,082.20x = 978,839,046,147,776,512
  5. Step 5: Solve for x
    x = 978,839,046,147,776,512/1,389,704,082.20
  6. Step 6: Final answer
    x = 704,350,702.20

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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.