Home / 20,732,369.58-28,621,027.98-12,894,408.37

Finding the Fourth Proportional to 20,732,369.58, 28,621,027.98 and 12,894,408.37

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Solution

The fourth proportional to 20,732,369.58, 28,621,027.98 and 12,894,408.37 is: 17,800,725.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,369.58 : 28,621,027.98 = 12,894,408.37 : x
  2. Step 2: Convert to fraction form
    20,732,369.58/28,621,027.98 = 12,894,408.37/x
  3. Step 3: Cross multiply
    20,732,369.58x = 28,621,027.98 × 12,894,408.37
  4. Step 4: Simplify right side
    20,732,369.58x = 369,051,222,743,316.19
  5. Step 5: Solve for x
    x = 369,051,222,743,316.19/20,732,369.58
  6. Step 6: Final answer
    x = 17,800,725.64

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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.