Home / 258,905,181.42-388,355,110.66-149,660,840.25

Finding the Fourth Proportional to 258,905,181.42, 388,355,110.66 and 149,660,840.25

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Solution

The fourth proportional to 258,905,181.42, 388,355,110.66 and 149,660,840.25 is: 224,489,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,905,181.42 : 388,355,110.66 = 149,660,840.25 : x
  2. Step 2: Convert to fraction form
    258,905,181.42/388,355,110.66 = 149,660,840.25/x
  3. Step 3: Cross multiply
    258,905,181.42x = 388,355,110.66 × 149,660,840.25
  4. Step 4: Simplify right side
    258,905,181.42x = 58,121,552,176,757,336
  5. Step 5: Solve for x
    x = 58,121,552,176,757,336/258,905,181.42
  6. Step 6: Final answer
    x = 224,489,721.91

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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.