Home / 421,021,208.85-580,979,773.31-244,796,701.92

Finding the Fourth Proportional to 421,021,208.85, 580,979,773.31 and 244,796,701.92

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Solution

The fourth proportional to 421,021,208.85, 580,979,773.31 and 244,796,701.92 is: 337,802,299.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,021,208.85 : 580,979,773.31 = 244,796,701.92 : x
  2. Step 2: Convert to fraction form
    421,021,208.85/580,979,773.31 = 244,796,701.92/x
  3. Step 3: Cross multiply
    421,021,208.85x = 580,979,773.31 × 244,796,701.92
  4. Step 4: Simplify right side
    421,021,208.85x = 142,221,932,387,293,232
  5. Step 5: Solve for x
    x = 142,221,932,387,293,232/421,021,208.85
  6. Step 6: Final answer
    x = 337,802,299.26

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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.