Home / 236,218,771.40-354,328,157.10-212,410,214.60

Finding the Fourth Proportional to 236,218,771.40, 354,328,157.10 and 212,410,214.60

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Solution

The fourth proportional to 236,218,771.40, 354,328,157.10 and 212,410,214.60 is: 318,615,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,218,771.40 : 354,328,157.10 = 212,410,214.60 : x
  2. Step 2: Convert to fraction form
    236,218,771.40/354,328,157.10 = 212,410,214.60/x
  3. Step 3: Cross multiply
    236,218,771.40x = 354,328,157.10 × 212,410,214.60
  4. Step 4: Simplify right side
    236,218,771.40x = 75,262,919,888,433,520
  5. Step 5: Solve for x
    x = 75,262,919,888,433,520/236,218,771.40
  6. Step 6: Final answer
    x = 318,615,321.90

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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.