Home / 20,756,670.32-31,135,116.36-13,613,439

Finding the Fourth Proportional to 20,756,670.32, 31,135,116.36 and 13,613,439

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Solution

The fourth proportional to 20,756,670.32, 31,135,116.36 and 13,613,439 is: 20,420,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756,670.32 : 31,135,116.36 = 13,613,439 : x
  2. Step 2: Convert to fraction form
    20,756,670.32/31,135,116.36 = 13,613,439/x
  3. Step 3: Cross multiply
    20,756,670.32x = 31,135,116.36 × 13,613,439
  4. Step 4: Simplify right side
    20,756,670.32x = 423,856,007,324,762.06
  5. Step 5: Solve for x
    x = 423,856,007,324,762.06/20,756,670.32
  6. Step 6: Final answer
    x = 20,420,231.22

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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.