Home / 421,021,127.35-580,979,660.77-244,796,620.35

Finding the Fourth Proportional to 421,021,127.35, 580,979,660.77 and 244,796,620.35

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Solution

The fourth proportional to 421,021,127.35, 580,979,660.77 and 244,796,620.35 is: 337,802,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,021,127.35 : 580,979,660.77 = 244,796,620.35 : x
  2. Step 2: Convert to fraction form
    421,021,127.35/580,979,660.77 = 244,796,620.35/x
  3. Step 3: Cross multiply
    421,021,127.35x = 580,979,660.77 × 244,796,620.35
  4. Step 4: Simplify right side
    421,021,127.35x = 142,221,857,448,585,472
  5. Step 5: Solve for x
    x = 142,221,857,448,585,472/421,021,127.35
  6. Step 6: Final answer
    x = 337,802,186.66

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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.