Home / 20,800,031.39-28,704,651.52-11,381,387.84

Finding the Fourth Proportional to 20,800,031.39, 28,704,651.52 and 11,381,387.84

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Solution

The fourth proportional to 20,800,031.39, 28,704,651.52 and 11,381,387.84 is: 15,706,648.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,031.39 : 28,704,651.52 = 11,381,387.84 : x
  2. Step 2: Convert to fraction form
    20,800,031.39/28,704,651.52 = 11,381,387.84/x
  3. Step 3: Cross multiply
    20,800,031.39x = 28,704,651.52 × 11,381,387.84
  4. Step 4: Simplify right side
    20,800,031.39x = 326,698,771,761,165.50
  5. Step 5: Solve for x
    x = 326,698,771,761,165.50/20,800,031.39
  6. Step 6: Final answer
    x = 15,706,648.02

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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.