Home / 638,682,104.04-881,214,701.22-374,222,015.88

Finding the Fourth Proportional to 638,682,104.04, 881,214,701.22 and 374,222,015.88

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Solution

The fourth proportional to 638,682,104.04, 881,214,701.22 and 374,222,015.88 is: 516,328,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,682,104.04 : 881,214,701.22 = 374,222,015.88 : x
  2. Step 2: Convert to fraction form
    638,682,104.04/881,214,701.22 = 374,222,015.88/x
  3. Step 3: Cross multiply
    638,682,104.04x = 881,214,701.22 × 374,222,015.88
  4. Step 4: Simplify right side
    638,682,104.04x = 329,769,941,913,640,320
  5. Step 5: Solve for x
    x = 329,769,941,913,640,320/638,682,104.04
  6. Step 6: Final answer
    x = 516,328,764.85

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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.