Home / 306,406,010.75-422,970,766.11-205,992,684.01

Finding the Fourth Proportional to 306,406,010.75, 422,970,766.11 and 205,992,684.01

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Solution

The fourth proportional to 306,406,010.75, 422,970,766.11 and 205,992,684.01 is: 284,357,618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,406,010.75 : 422,970,766.11 = 205,992,684.01 : x
  2. Step 2: Convert to fraction form
    306,406,010.75/422,970,766.11 = 205,992,684.01/x
  3. Step 3: Cross multiply
    306,406,010.75x = 422,970,766.11 × 205,992,684.01
  4. Step 4: Simplify right side
    306,406,010.75x = 87,128,883,366,650,000
  5. Step 5: Solve for x
    x = 87,128,883,366,650,000/306,406,010.75
  6. Step 6: Final answer
    x = 284,357,618.03

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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.