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Finding the Fourth Proportional to 222,445,905.30, 333,668,857.95 and 213,375,978.90

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Solution

The fourth proportional to 222,445,905.30, 333,668,857.95 and 213,375,978.90 is: 320,063,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,445,905.30 : 333,668,857.95 = 213,375,978.90 : x
  2. Step 2: Convert to fraction form
    222,445,905.30/333,668,857.95 = 213,375,978.90/x
  3. Step 3: Cross multiply
    222,445,905.30x = 333,668,857.95 × 213,375,978.90
  4. Step 4: Simplify right side
    222,445,905.30x = 71,196,919,193,526,296
  5. Step 5: Solve for x
    x = 71,196,919,193,526,296/222,445,905.30
  6. Step 6: Final answer
    x = 320,063,968.35

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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.