Home / 621,346,600.88-857,476,470.65-339,107,155.69

Finding the Fourth Proportional to 621,346,600.88, 857,476,470.65 and 339,107,155.69

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Solution

The fourth proportional to 621,346,600.88, 857,476,470.65 and 339,107,155.69 is: 467,977,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,346,600.88 : 857,476,470.65 = 339,107,155.69 : x
  2. Step 2: Convert to fraction form
    621,346,600.88/857,476,470.65 = 339,107,155.69/x
  3. Step 3: Cross multiply
    621,346,600.88x = 857,476,470.65 × 339,107,155.69
  4. Step 4: Simplify right side
    621,346,600.88x = 290,776,407,029,382,016
  5. Step 5: Solve for x
    x = 290,776,407,029,382,016/621,346,600.88
  6. Step 6: Final answer
    x = 467,977,786.66

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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.