Home / 420,820,486.82-580,750,206.72-235,181,497.04

Finding the Fourth Proportional to 420,820,486.82, 580,750,206.72 and 235,181,497.04

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Solution

The fourth proportional to 420,820,486.82, 580,750,206.72 and 235,181,497.04 is: 324,560,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,820,486.82 : 580,750,206.72 = 235,181,497.04 : x
  2. Step 2: Convert to fraction form
    420,820,486.82/580,750,206.72 = 235,181,497.04/x
  3. Step 3: Cross multiply
    420,820,486.82x = 580,750,206.72 × 235,181,497.04
  4. Step 4: Simplify right side
    420,820,486.82x = 136,581,703,022,699,072
  5. Step 5: Solve for x
    x = 136,581,703,022,699,072/420,820,486.82
  6. Step 6: Final answer
    x = 324,560,489.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.