Home / 14,508,415.80-20,021,613.06-7,981,905.12

Finding the Fourth Proportional to 14,508,415.80, 20,021,613.06 and 7,981,905.12

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Solution

The fourth proportional to 14,508,415.80, 20,021,613.06 and 7,981,905.12 is: 11,015,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508,415.80 : 20,021,613.06 = 7,981,905.12 : x
  2. Step 2: Convert to fraction form
    14,508,415.80/20,021,613.06 = 7,981,905.12/x
  3. Step 3: Cross multiply
    14,508,415.80x = 20,021,613.06 × 7,981,905.12
  4. Step 4: Simplify right side
    14,508,415.80x = 159,810,615,794,272.84
  5. Step 5: Solve for x
    x = 159,810,615,794,272.84/14,508,415.80
  6. Step 6: Final answer
    x = 11,015,028.66

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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.