Home / 354,280,448.40-531,420,672.60-217,522,381.20

Finding the Fourth Proportional to 354,280,448.40, 531,420,672.60 and 217,522,381.20

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Solution

The fourth proportional to 354,280,448.40, 531,420,672.60 and 217,522,381.20 is: 326,283,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,280,448.40 : 531,420,672.60 = 217,522,381.20 : x
  2. Step 2: Convert to fraction form
    354,280,448.40/531,420,672.60 = 217,522,381.20/x
  3. Step 3: Cross multiply
    354,280,448.40x = 531,420,672.60 × 217,522,381.20
  4. Step 4: Simplify right side
    354,280,448.40x = 115,595,890,122,857,600
  5. Step 5: Solve for x
    x = 115,595,890,122,857,600/354,280,448.40
  6. Step 6: Final answer
    x = 326,283,571.80

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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.