Home / 18,729,012.43-28,093,518.65-5,265,840.43

Finding the Fourth Proportional to 18,729,012.43, 28,093,518.65 and 5,265,840.43

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Solution

The fourth proportional to 18,729,012.43, 28,093,518.65 and 5,265,840.43 is: 7,898,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729,012.43 : 28,093,518.65 = 5,265,840.43 : x
  2. Step 2: Convert to fraction form
    18,729,012.43/28,093,518.65 = 5,265,840.43/x
  3. Step 3: Cross multiply
    18,729,012.43x = 28,093,518.65 × 5,265,840.43
  4. Step 4: Simplify right side
    18,729,012.43x = 147,935,986,328,129
  5. Step 5: Solve for x
    x = 147,935,986,328,129/18,729,012.43
  6. Step 6: Final answer
    x = 7,898,760.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.