Home / 621,295,051.62-857,405,392.80-339,055,715.82

Finding the Fourth Proportional to 621,295,051.62, 857,405,392.80 and 339,055,715.82

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Solution

The fourth proportional to 621,295,051.62, 857,405,392.80 and 339,055,715.82 is: 467,906,831.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,295,051.62 : 857,405,392.80 = 339,055,715.82 : x
  2. Step 2: Convert to fraction form
    621,295,051.62/857,405,392.80 = 339,055,715.82/x
  3. Step 3: Cross multiply
    621,295,051.62x = 857,405,392.80 × 339,055,715.82
  4. Step 4: Simplify right side
    621,295,051.62x = 290,708,199,203,732,224
  5. Step 5: Solve for x
    x = 290,708,199,203,732,224/621,295,051.62
  6. Step 6: Final answer
    x = 467,906,831.78

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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.