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Finding the Fourth Proportional to 71,569,456.80, 107,354,185.20 and 60,483,991.20

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Solution

The fourth proportional to 71,569,456.80, 107,354,185.20 and 60,483,991.20 is: 90,725,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569,456.80 : 107,354,185.20 = 60,483,991.20 : x
  2. Step 2: Convert to fraction form
    71,569,456.80/107,354,185.20 = 60,483,991.20/x
  3. Step 3: Cross multiply
    71,569,456.80x = 107,354,185.20 × 60,483,991.20
  4. Step 4: Simplify right side
    71,569,456.80x = 6,493,209,592,919,971
  5. Step 5: Solve for x
    x = 6,493,209,592,919,971/71,569,456.80
  6. Step 6: Final answer
    x = 90,725,986.80

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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.