Home / 262,726,821.40-394,090,232.10-165,980,939.80

Finding the Fourth Proportional to 262,726,821.40, 394,090,232.10 and 165,980,939.80

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Solution

The fourth proportional to 262,726,821.40, 394,090,232.10 and 165,980,939.80 is: 248,971,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,726,821.40 : 394,090,232.10 = 165,980,939.80 : x
  2. Step 2: Convert to fraction form
    262,726,821.40/394,090,232.10 = 165,980,939.80/x
  3. Step 3: Cross multiply
    262,726,821.40x = 394,090,232.10 × 165,980,939.80
  4. Step 4: Simplify right side
    262,726,821.40x = 65,411,467,089,958,136
  5. Step 5: Solve for x
    x = 65,411,467,089,958,136/262,726,821.40
  6. Step 6: Final answer
    x = 248,971,409.70

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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.