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Finding the Fourth Proportional to 557,638,586.80, 836,457,880.20 and 327,717,818.80

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Solution

The fourth proportional to 557,638,586.80, 836,457,880.20 and 327,717,818.80 is: 491,576,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,638,586.80 : 836,457,880.20 = 327,717,818.80 : x
  2. Step 2: Convert to fraction form
    557,638,586.80/836,457,880.20 = 327,717,818.80/x
  3. Step 3: Cross multiply
    557,638,586.80x = 836,457,880.20 × 327,717,818.80
  4. Step 4: Simplify right side
    557,638,586.80x = 274,122,152,017,215,744
  5. Step 5: Solve for x
    x = 274,122,152,017,215,744/557,638,586.80
  6. Step 6: Final answer
    x = 491,576,728.20

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Similar ratio
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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.