Home / 429,556,003.28-644,070,308.77-166,933,911.61

Finding the Fourth Proportional to 429,556,003.28, 644,070,308.77 and 166,933,911.61

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Solution

The fourth proportional to 429,556,003.28, 644,070,308.77 and 166,933,911.61 is: 250,298,389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,556,003.28 : 644,070,308.77 = 166,933,911.61 : x
  2. Step 2: Convert to fraction form
    429,556,003.28/644,070,308.77 = 166,933,911.61/x
  3. Step 3: Cross multiply
    429,556,003.28x = 644,070,308.77 × 166,933,911.61
  4. Step 4: Simplify right side
    429,556,003.28x = 107,517,175,997,194,192
  5. Step 5: Solve for x
    x = 107,517,175,997,194,192/429,556,003.28
  6. Step 6: Final answer
    x = 250,298,389.91

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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.