Home / 206,878,728.22-285,765,163.24-153,341,920.44

Finding the Fourth Proportional to 206,878,728.22, 285,765,163.24 and 153,341,920.44

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Solution

The fourth proportional to 206,878,728.22, 285,765,163.24 and 153,341,920.44 is: 211,813,845.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,878,728.22 : 285,765,163.24 = 153,341,920.44 : x
  2. Step 2: Convert to fraction form
    206,878,728.22/285,765,163.24 = 153,341,920.44/x
  3. Step 3: Cross multiply
    206,878,728.22x = 285,765,163.24 × 153,341,920.44
  4. Step 4: Simplify right side
    206,878,728.22x = 43,819,778,924,642,872
  5. Step 5: Solve for x
    x = 43,819,778,924,642,872/206,878,728.22
  6. Step 6: Final answer
    x = 211,813,845.25

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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.