Home / 306,406,014.26-422,970,770.96-205,992,687.51

Finding the Fourth Proportional to 306,406,014.26, 422,970,770.96 and 205,992,687.51

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Solution

The fourth proportional to 306,406,014.26, 422,970,770.96 and 205,992,687.51 is: 284,357,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,406,014.26 : 422,970,770.96 = 205,992,687.51 : x
  2. Step 2: Convert to fraction form
    306,406,014.26/422,970,770.96 = 205,992,687.51/x
  3. Step 3: Cross multiply
    306,406,014.26x = 422,970,770.96 × 205,992,687.51
  4. Step 4: Simplify right side
    306,406,014.26x = 87,128,885,847,197,088
  5. Step 5: Solve for x
    x = 87,128,885,847,197,088/306,406,014.26
  6. Step 6: Final answer
    x = 284,357,622.87

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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.