Home / 279,459,518.96-385,656,771.66-154,016,238.26

Finding the Fourth Proportional to 279,459,518.96, 385,656,771.66 and 154,016,238.26

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Solution

The fourth proportional to 279,459,518.96, 385,656,771.66 and 154,016,238.26 is: 212,543,861.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,459,518.96 : 385,656,771.66 = 154,016,238.26 : x
  2. Step 2: Convert to fraction form
    279,459,518.96/385,656,771.66 = 154,016,238.26/x
  3. Step 3: Cross multiply
    279,459,518.96x = 385,656,771.66 × 154,016,238.26
  4. Step 4: Simplify right side
    279,459,518.96x = 59,397,405,230,568,976
  5. Step 5: Solve for x
    x = 59,397,405,230,568,976/279,459,518.96
  6. Step 6: Final answer
    x = 212,543,861.28

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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.