Home / 479,278,220.57-661,291,619.35-291,101,273.33

Finding the Fourth Proportional to 479,278,220.57, 661,291,619.35 and 291,101,273.33

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Solution

The fourth proportional to 479,278,220.57, 661,291,619.35 and 291,101,273.33 is: 401,651,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,278,220.57 : 661,291,619.35 = 291,101,273.33 : x
  2. Step 2: Convert to fraction form
    479,278,220.57/661,291,619.35 = 291,101,273.33/x
  3. Step 3: Cross multiply
    479,278,220.57x = 661,291,619.35 × 291,101,273.33
  4. Step 4: Simplify right side
    479,278,220.57x = 192,502,832,434,855,040
  5. Step 5: Solve for x
    x = 192,502,832,434,855,040/479,278,220.57
  6. Step 6: Final answer
    x = 401,651,533.86

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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.