Home / 5,178,929,471.38-7,146,909,227.94-2,890,037,681.92

Finding the Fourth Proportional to 5,178,929,471.38, 7,146,909,227.94 and 2,890,037,681.92

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Solution

The fourth proportional to 5,178,929,471.38, 7,146,909,227.94 and 2,890,037,681.92 is: 3,988,244,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,929,471.38 : 7,146,909,227.94 = 2,890,037,681.92 : x
  2. Step 2: Convert to fraction form
    5,178,929,471.38/7,146,909,227.94 = 2,890,037,681.92/x
  3. Step 3: Cross multiply
    5,178,929,471.38x = 7,146,909,227.94 × 2,890,037,681.92
  4. Step 4: Simplify right side
    5,178,929,471.38x = 20,654,836,978,008,375,296
  5. Step 5: Solve for x
    x = 20,654,836,978,008,375,296/5,178,929,471.38
  6. Step 6: Final answer
    x = 3,988,244,499.59

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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.