Home / 12,886,514.40-17,782,330.41-7,587,366.96

Finding the Fourth Proportional to 12,886,514.40, 17,782,330.41 and 7,587,366.96

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Solution

The fourth proportional to 12,886,514.40, 17,782,330.41 and 7,587,366.96 is: 10,469,942.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,514.40 : 17,782,330.41 = 7,587,366.96 : x
  2. Step 2: Convert to fraction form
    12,886,514.40/17,782,330.41 = 7,587,366.96/x
  3. Step 3: Cross multiply
    12,886,514.40x = 17,782,330.41 × 7,587,366.96
  4. Step 4: Simplify right side
    12,886,514.40x = 134,921,066,224,637.25
  5. Step 5: Solve for x
    x = 134,921,066,224,637.25/12,886,514.40
  6. Step 6: Final answer
    x = 10,469,942.61

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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.