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Finding the Fourth Proportional to 379,902,728.40, 569,854,092.60 and 339,088,059.60

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Solution

The fourth proportional to 379,902,728.40, 569,854,092.60 and 339,088,059.60 is: 508,632,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,902,728.40 : 569,854,092.60 = 339,088,059.60 : x
  2. Step 2: Convert to fraction form
    379,902,728.40/569,854,092.60 = 339,088,059.60/x
  3. Step 3: Cross multiply
    379,902,728.40x = 569,854,092.60 × 339,088,059.60
  4. Step 4: Simplify right side
    379,902,728.40x = 193,230,718,514,852,736
  5. Step 5: Solve for x
    x = 193,230,718,514,852,736/379,902,728.40
  6. Step 6: Final answer
    x = 508,632,089.40

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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.