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Finding the Fourth Proportional to 28,335,650.11, 42,503,713.27 and 7,866,965.72

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Solution

The fourth proportional to 28,335,650.11, 42,503,713.27 and 7,866,965.72 is: 11,800,514.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335,650.11 : 42,503,713.27 = 7,866,965.72 : x
  2. Step 2: Convert to fraction form
    28,335,650.11/42,503,713.27 = 7,866,965.72/x
  3. Step 3: Cross multiply
    28,335,650.11x = 42,503,713.27 × 7,866,965.72
  4. Step 4: Simplify right side
    28,335,650.11x = 334,375,255,354,390.94
  5. Step 5: Solve for x
    x = 334,375,255,354,390.94/28,335,650.11
  6. Step 6: Final answer
    x = 11,800,514.69

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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.