Home / 314,929,372.80-472,394,059.20-217,858,065.60

Finding the Fourth Proportional to 314,929,372.80, 472,394,059.20 and 217,858,065.60

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Solution

The fourth proportional to 314,929,372.80, 472,394,059.20 and 217,858,065.60 is: 326,787,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,372.80 : 472,394,059.20 = 217,858,065.60 : x
  2. Step 2: Convert to fraction form
    314,929,372.80/472,394,059.20 = 217,858,065.60/x
  3. Step 3: Cross multiply
    314,929,372.80x = 472,394,059.20 × 217,858,065.60
  4. Step 4: Simplify right side
    314,929,372.80x = 102,914,855,938,243,872
  5. Step 5: Solve for x
    x = 102,914,855,938,243,872/314,929,372.80
  6. Step 6: Final answer
    x = 326,787,098.40

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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.