Home / 81,777,493.40-122,666,240.10-54,567,714.20

Finding the Fourth Proportional to 81,777,493.40, 122,666,240.10 and 54,567,714.20

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Solution

The fourth proportional to 81,777,493.40, 122,666,240.10 and 54,567,714.20 is: 81,851,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,777,493.40 : 122,666,240.10 = 54,567,714.20 : x
  2. Step 2: Convert to fraction form
    81,777,493.40/122,666,240.10 = 54,567,714.20/x
  3. Step 3: Cross multiply
    81,777,493.40x = 122,666,240.10 × 54,567,714.20
  4. Step 4: Simplify right side
    81,777,493.40x = 6,693,616,331,765,379
  5. Step 5: Solve for x
    x = 6,693,616,331,765,379/81,777,493.40
  6. Step 6: Final answer
    x = 81,851,571.30

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1.5x scale

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.