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Finding the Fourth Proportional to 199,668,512.70, 299,479,149.45 and 54,093,044.70

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Solution

The fourth proportional to 199,668,512.70, 299,479,149.45 and 54,093,044.70 is: 81,133,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,668,512.70 : 299,479,149.45 = 54,093,044.70 : x
  2. Step 2: Convert to fraction form
    199,668,512.70/299,479,149.45 = 54,093,044.70/x
  3. Step 3: Cross multiply
    199,668,512.70x = 299,479,149.45 × 54,093,044.70
  4. Step 4: Simplify right side
    199,668,512.70x = 16,199,739,017,916,830
  5. Step 5: Solve for x
    x = 16,199,739,017,916,830/199,668,512.70
  6. Step 6: Final answer
    x = 81,133,168.16

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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.