Home / 20,488,893.91-28,276,285.34-11,668,718.05

Finding the Fourth Proportional to 20,488,893.91, 28,276,285.34 and 11,668,718.05

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Solution

The fourth proportional to 20,488,893.91, 28,276,285.34 and 11,668,718.05 is: 16,103,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,893.91 : 28,276,285.34 = 11,668,718.05 : x
  2. Step 2: Convert to fraction form
    20,488,893.91/28,276,285.34 = 11,668,718.05/x
  3. Step 3: Cross multiply
    20,488,893.91x = 28,276,285.34 × 11,668,718.05
  4. Step 4: Simplify right side
    20,488,893.91x = 329,948,001,092,289.44
  5. Step 5: Solve for x
    x = 329,948,001,092,289.44/20,488,893.91
  6. Step 6: Final answer
    x = 16,103,748.82

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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.