Home / 422,421,335.10-633,632,002.65-215,797,074.30

Finding the Fourth Proportional to 422,421,335.10, 633,632,002.65 and 215,797,074.30

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Solution

The fourth proportional to 422,421,335.10, 633,632,002.65 and 215,797,074.30 is: 323,695,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,421,335.10 : 633,632,002.65 = 215,797,074.30 : x
  2. Step 2: Convert to fraction form
    422,421,335.10/633,632,002.65 = 215,797,074.30/x
  3. Step 3: Cross multiply
    422,421,335.10x = 633,632,002.65 × 215,797,074.30
  4. Step 4: Simplify right side
    422,421,335.10x = 136,735,932,354,719,856
  5. Step 5: Solve for x
    x = 136,735,932,354,719,856/422,421,335.10
  6. Step 6: Final answer
    x = 323,695,611.45

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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.