Home / 266,080,077.82-399,121,042.56-81,846,303.58

Finding the Fourth Proportional to 266,080,077.82, 399,121,042.56 and 81,846,303.58

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Solution

The fourth proportional to 266,080,077.82, 399,121,042.56 and 81,846,303.58 is: 122,769,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,080,077.82 : 399,121,042.56 = 81,846,303.58 : x
  2. Step 2: Convert to fraction form
    266,080,077.82/399,121,042.56 = 81,846,303.58/x
  3. Step 3: Cross multiply
    266,080,077.82x = 399,121,042.56 × 81,846,303.58
  4. Step 4: Simplify right side
    266,080,077.82x = 32,666,582,014,531,860
  5. Step 5: Solve for x
    x = 32,666,582,014,531,860/266,080,077.82
  6. Step 6: Final answer
    x = 122,769,740.16

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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.