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Finding the Fourth Proportional to 275,676,915.20, 413,515,372.80 and 173,640,243.20

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Solution

The fourth proportional to 275,676,915.20, 413,515,372.80 and 173,640,243.20 is: 260,460,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,676,915.20 : 413,515,372.80 = 173,640,243.20 : x
  2. Step 2: Convert to fraction form
    275,676,915.20/413,515,372.80 = 173,640,243.20/x
  3. Step 3: Cross multiply
    275,676,915.20x = 413,515,372.80 × 173,640,243.20
  4. Step 4: Simplify right side
    275,676,915.20x = 71,802,909,899,930,664
  5. Step 5: Solve for x
    x = 71,802,909,899,930,664/275,676,915.20
  6. Step 6: Final answer
    x = 260,460,364.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.