Home / 258,985,056.96-388,754,132.42-111,505,654.80

Finding the Fourth Proportional to 258,985,056.96, 388,754,132.42 and 111,505,654.80

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Solution

The fourth proportional to 258,985,056.96, 388,754,132.42 and 111,505,654.80 is: 167,377,549.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,985,056.96 : 388,754,132.42 = 111,505,654.80 : x
  2. Step 2: Convert to fraction form
    258,985,056.96/388,754,132.42 = 111,505,654.80/x
  3. Step 3: Cross multiply
    258,985,056.96x = 388,754,132.42 × 111,505,654.80
  4. Step 4: Simplify right side
    258,985,056.96x = 43,348,284,091,698,008
  5. Step 5: Solve for x
    x = 43,348,284,091,698,008/258,985,056.96
  6. Step 6: Final answer
    x = 167,377,549.12

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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.