Home / 431,569,475.55-647,354,213.33-395,856,640.35

Finding the Fourth Proportional to 431,569,475.55, 647,354,213.33 and 395,856,640.35

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Solution

The fourth proportional to 431,569,475.55, 647,354,213.33 and 395,856,640.35 is: 593,784,960.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,475.55 : 647,354,213.33 = 395,856,640.35 : x
  2. Step 2: Convert to fraction form
    431,569,475.55/647,354,213.33 = 395,856,640.35/x
  3. Step 3: Cross multiply
    431,569,475.55x = 647,354,213.33 × 395,856,640.35
  4. Step 4: Simplify right side
    431,569,475.55x = 256,259,464,003,251,744
  5. Step 5: Solve for x
    x = 256,259,464,003,251,744/431,569,475.55
  6. Step 6: Final answer
    x = 593,784,960.53

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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.