Home / 20,855,339.08-28,782,071.70-11,565,818.44

Finding the Fourth Proportional to 20,855,339.08, 28,782,071.70 and 11,565,818.44

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Solution

The fourth proportional to 20,855,339.08, 28,782,071.70 and 11,565,818.44 is: 15,961,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855,339.08 : 28,782,071.70 = 11,565,818.44 : x
  2. Step 2: Convert to fraction form
    20,855,339.08/28,782,071.70 = 11,565,818.44/x
  3. Step 3: Cross multiply
    20,855,339.08x = 28,782,071.70 × 11,565,818.44
  4. Step 4: Simplify right side
    20,855,339.08x = 332,888,215,609,262.12
  5. Step 5: Solve for x
    x = 332,888,215,609,262.12/20,855,339.08
  6. Step 6: Final answer
    x = 15,961,774.31

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1.5x scale

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.