Home / 20,383,644.15-28,118,709.56-12,117,826.74

Finding the Fourth Proportional to 20,383,644.15, 28,118,709.56 and 12,117,826.74

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Solution

The fourth proportional to 20,383,644.15, 28,118,709.56 and 12,117,826.74 is: 16,716,228.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,644.15 : 28,118,709.56 = 12,117,826.74 : x
  2. Step 2: Convert to fraction form
    20,383,644.15/28,118,709.56 = 12,117,826.74/x
  3. Step 3: Cross multiply
    20,383,644.15x = 28,118,709.56 × 12,117,826.74
  4. Step 4: Simplify right side
    20,383,644.15x = 340,737,650,630,756.19
  5. Step 5: Solve for x
    x = 340,737,650,630,756.19/20,383,644.15
  6. Step 6: Final answer
    x = 16,716,228.37

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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.