Home / 221,293,290.40-331,939,935.60-214,915,998.40

Finding the Fourth Proportional to 221,293,290.40, 331,939,935.60 and 214,915,998.40

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Solution

The fourth proportional to 221,293,290.40, 331,939,935.60 and 214,915,998.40 is: 322,373,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,293,290.40 : 331,939,935.60 = 214,915,998.40 : x
  2. Step 2: Convert to fraction form
    221,293,290.40/331,939,935.60 = 214,915,998.40/x
  3. Step 3: Cross multiply
    221,293,290.40x = 331,939,935.60 × 214,915,998.40
  4. Step 4: Simplify right side
    221,293,290.40x = 71,339,202,668,305,712
  5. Step 5: Solve for x
    x = 71,339,202,668,305,712/221,293,290.40
  6. Step 6: Final answer
    x = 322,373,997.60

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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.