Home / 402,495,353.88-555,445,469.34-228,664,636.44

Finding the Fourth Proportional to 402,495,353.88, 555,445,469.34 and 228,664,636.44

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Solution

The fourth proportional to 402,495,353.88, 555,445,469.34 and 228,664,636.44 is: 315,558,266.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,495,353.88 : 555,445,469.34 = 228,664,636.44 : x
  2. Step 2: Convert to fraction form
    402,495,353.88/555,445,469.34 = 228,664,636.44/x
  3. Step 3: Cross multiply
    402,495,353.88x = 555,445,469.34 × 228,664,636.44
  4. Step 4: Simplify right side
    402,495,353.88x = 127,010,736,308,876,272
  5. Step 5: Solve for x
    x = 127,010,736,308,876,272/402,495,353.88
  6. Step 6: Final answer
    x = 315,558,266.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.