Home / 520,661,512.56-718,334,921.52-297,483,061.44

Finding the Fourth Proportional to 520,661,512.56, 718,334,921.52 and 297,483,061.44

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Solution

The fourth proportional to 520,661,512.56, 718,334,921.52 and 297,483,061.44 is: 410,424,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,661,512.56 : 718,334,921.52 = 297,483,061.44 : x
  2. Step 2: Convert to fraction form
    520,661,512.56/718,334,921.52 = 297,483,061.44/x
  3. Step 3: Cross multiply
    520,661,512.56x = 718,334,921.52 × 297,483,061.44
  4. Step 4: Simplify right side
    520,661,512.56x = 213,692,471,593,031,744
  5. Step 5: Solve for x
    x = 213,692,471,593,031,744/520,661,512.56
  6. Step 6: Final answer
    x = 410,424,942.96

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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.