Home / 872,293,976.25-1,308,452,361.29-290,028,221.79

Finding the Fourth Proportional to 872,293,976.25, 1,308,452,361.29 and 290,028,221.79

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Solution

The fourth proportional to 872,293,976.25, 1,308,452,361.29 and 290,028,221.79 is: 435,046,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,293,976.25 : 1,308,452,361.29 = 290,028,221.79 : x
  2. Step 2: Convert to fraction form
    872,293,976.25/1,308,452,361.29 = 290,028,221.79/x
  3. Step 3: Cross multiply
    872,293,976.25x = 1,308,452,361.29 × 290,028,221.79
  4. Step 4: Simplify right side
    872,293,976.25x = 379,488,111,640,415,232
  5. Step 5: Solve for x
    x = 379,488,111,640,415,232/872,293,976.25
  6. Step 6: Final answer
    x = 435,046,122.03

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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.