Home / 15,886,708.34-21,921,903.14-8,915,786.96

Finding the Fourth Proportional to 15,886,708.34, 21,921,903.14 and 8,915,786.96

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Solution

The fourth proportional to 15,886,708.34, 21,921,903.14 and 8,915,786.96 is: 12,302,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886,708.34 : 21,921,903.14 = 8,915,786.96 : x
  2. Step 2: Convert to fraction form
    15,886,708.34/21,921,903.14 = 8,915,786.96/x
  3. Step 3: Cross multiply
    15,886,708.34x = 21,921,903.14 × 8,915,786.96
  4. Step 4: Simplify right side
    15,886,708.34x = 195,451,017,999,806.62
  5. Step 5: Solve for x
    x = 195,451,017,999,806.62/15,886,708.34
  6. Step 6: Final answer
    x = 12,302,801.43

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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.