Home / 309,609,906.24-427,256,144.64-168,476,312.64

Finding the Fourth Proportional to 309,609,906.24, 427,256,144.64 and 168,476,312.64

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Solution

The fourth proportional to 309,609,906.24, 427,256,144.64 and 168,476,312.64 is: 232,494,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,609,906.24 : 427,256,144.64 = 168,476,312.64 : x
  2. Step 2: Convert to fraction form
    309,609,906.24/427,256,144.64 = 168,476,312.64/x
  3. Step 3: Cross multiply
    309,609,906.24x = 427,256,144.64 × 168,476,312.64
  4. Step 4: Simplify right side
    309,609,906.24x = 71,982,539,801,729,688
  5. Step 5: Solve for x
    x = 71,982,539,801,729,688/309,609,906.24
  6. Step 6: Final answer
    x = 232,494,304.45

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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.