Home / 314,928,014.20-472,392,021.30-217,993,175.80

Finding the Fourth Proportional to 314,928,014.20, 472,392,021.30 and 217,993,175.80

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Solution

The fourth proportional to 314,928,014.20, 472,392,021.30 and 217,993,175.80 is: 326,989,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,014.20 : 472,392,021.30 = 217,993,175.80 : x
  2. Step 2: Convert to fraction form
    314,928,014.20/472,392,021.30 = 217,993,175.80/x
  3. Step 3: Cross multiply
    314,928,014.20x = 472,392,021.30 × 217,993,175.80
  4. Step 4: Simplify right side
    314,928,014.20x = 102,978,236,945,768,256
  5. Step 5: Solve for x
    x = 102,978,236,945,768,256/314,928,014.20
  6. Step 6: Final answer
    x = 326,989,763.70

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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.