Home / 215,460,571.20-323,190,856.80-212,059,348.80

Finding the Fourth Proportional to 215,460,571.20, 323,190,856.80 and 212,059,348.80

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Solution

The fourth proportional to 215,460,571.20, 323,190,856.80 and 212,059,348.80 is: 318,089,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,460,571.20 : 323,190,856.80 = 212,059,348.80 : x
  2. Step 2: Convert to fraction form
    215,460,571.20/323,190,856.80 = 212,059,348.80/x
  3. Step 3: Cross multiply
    215,460,571.20x = 323,190,856.80 × 212,059,348.80
  4. Step 4: Simplify right side
    215,460,571.20x = 68,535,642,631,122,056
  5. Step 5: Solve for x
    x = 68,535,642,631,122,056/215,460,571.20
  6. Step 6: Final answer
    x = 318,089,023.20

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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.