Home / 380,265,791.43-524,769,873.81-210,722,861.28

Finding the Fourth Proportional to 380,265,791.43, 524,769,873.81 and 210,722,861.28

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Solution

The fourth proportional to 380,265,791.43, 524,769,873.81 and 210,722,861.28 is: 290,799,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,265,791.43 : 524,769,873.81 = 210,722,861.28 : x
  2. Step 2: Convert to fraction form
    380,265,791.43/524,769,873.81 = 210,722,861.28/x
  3. Step 3: Cross multiply
    380,265,791.43x = 524,769,873.81 × 210,722,861.28
  4. Step 4: Simplify right side
    380,265,791.43x = 110,581,009,322,787,744
  5. Step 5: Solve for x
    x = 110,581,009,322,787,744/380,265,791.43
  6. Step 6: Final answer
    x = 290,799,256.24

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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.