Home / 1,005,534,709.67-1,508,519,161.31-306,081,540.78

Finding the Fourth Proportional to 1,005,534,709.67, 1,508,519,161.31 and 306,081,540.78

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Solution

The fourth proportional to 1,005,534,709.67, 1,508,519,161.31 and 306,081,540.78 is: 459,188,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,534,709.67 : 1,508,519,161.31 = 306,081,540.78 : x
  2. Step 2: Convert to fraction form
    1,005,534,709.67/1,508,519,161.31 = 306,081,540.78/x
  3. Step 3: Cross multiply
    1,005,534,709.67x = 1,508,519,161.31 × 306,081,540.78
  4. Step 4: Simplify right side
    1,005,534,709.67x = 461,729,869,188,387,712
  5. Step 5: Solve for x
    x = 461,729,869,188,387,712/1,005,534,709.67
  6. Step 6: Final answer
    x = 459,188,394.74

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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.