Home / 642,343,625.89-886,434,203.64-363,885,149.42

Finding the Fourth Proportional to 642,343,625.89, 886,434,203.64 and 363,885,149.42

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Solution

The fourth proportional to 642,343,625.89, 886,434,203.64 and 363,885,149.42 is: 502,161,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,343,625.89 : 886,434,203.64 = 363,885,149.42 : x
  2. Step 2: Convert to fraction form
    642,343,625.89/886,434,203.64 = 363,885,149.42/x
  3. Step 3: Cross multiply
    642,343,625.89x = 886,434,203.64 × 363,885,149.42
  4. Step 4: Simplify right side
    642,343,625.89x = 322,560,242,642,540,096
  5. Step 5: Solve for x
    x = 322,560,242,642,540,096/642,343,625.89
  6. Step 6: Final answer
    x = 502,161,506.15

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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.