Home / 177,412,908.80-266,119,363.20-81,861,420.80

Finding the Fourth Proportional to 177,412,908.80, 266,119,363.20 and 81,861,420.80

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Solution

The fourth proportional to 177,412,908.80, 266,119,363.20 and 81,861,420.80 is: 122,792,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,412,908.80 : 266,119,363.20 = 81,861,420.80 : x
  2. Step 2: Convert to fraction form
    177,412,908.80/266,119,363.20 = 81,861,420.80/x
  3. Step 3: Cross multiply
    177,412,908.80x = 266,119,363.20 × 81,861,420.80
  4. Step 4: Simplify right side
    177,412,908.80x = 21,784,909,173,943,232
  5. Step 5: Solve for x
    x = 21,784,909,173,943,232/177,412,908.80
  6. Step 6: Final answer
    x = 122,792,131.20

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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.