Home / 2,620,404,791.70-3,930,607,187.55-1,242,909,719.70

Finding the Fourth Proportional to 2,620,404,791.70, 3,930,607,187.55 and 1,242,909,719.70

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Solution

The fourth proportional to 2,620,404,791.70, 3,930,607,187.55 and 1,242,909,719.70 is: 1,864,364,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620,404,791.70 : 3,930,607,187.55 = 1,242,909,719.70 : x
  2. Step 2: Convert to fraction form
    2,620,404,791.70/3,930,607,187.55 = 1,242,909,719.70/x
  3. Step 3: Cross multiply
    2,620,404,791.70x = 3,930,607,187.55 × 1,242,909,719.70
  4. Step 4: Simplify right side
    2,620,404,791.70x = 4,885,389,877,728,576,512
  5. Step 5: Solve for x
    x = 4,885,389,877,728,576,512/2,620,404,791.70
  6. Step 6: Final answer
    x = 1,864,364,579.55

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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.