Home / 645,943,164.10-968,867,878.20-252,395,991.43

Finding the Fourth Proportional to 645,943,164.10, 968,867,878.20 and 252,395,991.43

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Solution

The fourth proportional to 645,943,164.10, 968,867,878.20 and 252,395,991.43 is: 378,575,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,943,164.10 : 968,867,878.20 = 252,395,991.43 : x
  2. Step 2: Convert to fraction form
    645,943,164.10/968,867,878.20 = 252,395,991.43/x
  3. Step 3: Cross multiply
    645,943,164.10x = 968,867,878.20 × 252,395,991.43
  4. Step 4: Simplify right side
    645,943,164.10x = 244,538,368,682,969,504
  5. Step 5: Solve for x
    x = 244,538,368,682,969,504/645,943,164.10
  6. Step 6: Final answer
    x = 378,575,673.95

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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.