Home / 266,080,076.82-399,121,041.06-81,846,302.58

Finding the Fourth Proportional to 266,080,076.82, 399,121,041.06 and 81,846,302.58

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Solution

The fourth proportional to 266,080,076.82, 399,121,041.06 and 81,846,302.58 is: 122,769,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,080,076.82 : 399,121,041.06 = 81,846,302.58 : x
  2. Step 2: Convert to fraction form
    266,080,076.82/399,121,041.06 = 81,846,302.58/x
  3. Step 3: Cross multiply
    266,080,076.82x = 399,121,041.06 × 81,846,302.58
  4. Step 4: Simplify right side
    266,080,076.82x = 32,666,581,492,641,364
  5. Step 5: Solve for x
    x = 32,666,581,492,641,364/266,080,076.82
  6. Step 6: Final answer
    x = 122,769,738.66

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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.