Home / 262,656,090.40-393,984,135.60-165,910,208.80

Finding the Fourth Proportional to 262,656,090.40, 393,984,135.60 and 165,910,208.80

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Solution

The fourth proportional to 262,656,090.40, 393,984,135.60 and 165,910,208.80 is: 248,865,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,656,090.40 : 393,984,135.60 = 165,910,208.80 : x
  2. Step 2: Convert to fraction form
    262,656,090.40/393,984,135.60 = 165,910,208.80/x
  3. Step 3: Cross multiply
    262,656,090.40x = 393,984,135.60 × 165,910,208.80
  4. Step 4: Simplify right side
    262,656,090.40x = 65,365,990,201,283,520
  5. Step 5: Solve for x
    x = 65,365,990,201,283,520/262,656,090.40
  6. Step 6: Final answer
    x = 248,865,313.20

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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.