Home / 505,640,680.65-758,461,020.98-259,654,356.45

Finding the Fourth Proportional to 505,640,680.65, 758,461,020.98 and 259,654,356.45

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Solution

The fourth proportional to 505,640,680.65, 758,461,020.98 and 259,654,356.45 is: 389,481,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,640,680.65 : 758,461,020.98 = 259,654,356.45 : x
  2. Step 2: Convert to fraction form
    505,640,680.65/758,461,020.98 = 259,654,356.45/x
  3. Step 3: Cross multiply
    505,640,680.65x = 758,461,020.98 × 259,654,356.45
  4. Step 4: Simplify right side
    505,640,680.65x = 196,937,708,293,673,568
  5. Step 5: Solve for x
    x = 196,937,708,293,673,568/505,640,680.65
  6. Step 6: Final answer
    x = 389,481,534.68

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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.