Home / 1,291,580,382.56-1,937,678,489.39-418,182,013.85

Finding the Fourth Proportional to 1,291,580,382.56, 1,937,678,489.39 and 418,182,013.85

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Solution

The fourth proportional to 1,291,580,382.56, 1,937,678,489.39 and 418,182,013.85 is: 627,372,716.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,580,382.56 : 1,937,678,489.39 = 418,182,013.85 : x
  2. Step 2: Convert to fraction form
    1,291,580,382.56/1,937,678,489.39 = 418,182,013.85/x
  3. Step 3: Cross multiply
    1,291,580,382.56x = 1,937,678,489.39 × 418,182,013.85
  4. Step 4: Simplify right side
    1,291,580,382.56x = 810,302,292,878,293,120
  5. Step 5: Solve for x
    x = 810,302,292,878,293,120/1,291,580,382.56
  6. Step 6: Final answer
    x = 627,372,716.27

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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.