Home / 105,177,999.20-157,766,998.80-71,204,136.80

Finding the Fourth Proportional to 105,177,999.20, 157,766,998.80 and 71,204,136.80

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Solution

The fourth proportional to 105,177,999.20, 157,766,998.80 and 71,204,136.80 is: 106,806,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,177,999.20 : 157,766,998.80 = 71,204,136.80 : x
  2. Step 2: Convert to fraction form
    105,177,999.20/157,766,998.80 = 71,204,136.80/x
  3. Step 3: Cross multiply
    105,177,999.20x = 157,766,998.80 × 71,204,136.80
  4. Step 4: Simplify right side
    105,177,999.20x = 11,233,662,965,080,636
  5. Step 5: Solve for x
    x = 11,233,662,965,080,636/105,177,999.20
  6. Step 6: Final answer
    x = 106,806,205.20

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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.