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Finding the Fourth Proportional to 610,092,001.20, 915,138,001.80 and 195,568,021.20

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Solution

The fourth proportional to 610,092,001.20, 915,138,001.80 and 195,568,021.20 is: 293,352,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,092,001.20 : 915,138,001.80 = 195,568,021.20 : x
  2. Step 2: Convert to fraction form
    610,092,001.20/915,138,001.80 = 195,568,021.20/x
  3. Step 3: Cross multiply
    610,092,001.20x = 915,138,001.80 × 195,568,021.20
  4. Step 4: Simplify right side
    610,092,001.20x = 178,971,728,136,948,032
  5. Step 5: Solve for x
    x = 178,971,728,136,948,032/610,092,001.20
  6. Step 6: Final answer
    x = 293,352,031.80

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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.