Home / 21,817,102.72-30,108,626.88-12,159,379.84

Finding the Fourth Proportional to 21,817,102.72, 30,108,626.88 and 12,159,379.84

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Solution

The fourth proportional to 21,817,102.72, 30,108,626.88 and 12,159,379.84 is: 16,780,515.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,817,102.72 : 30,108,626.88 = 12,159,379.84 : x
  2. Step 2: Convert to fraction form
    21,817,102.72/30,108,626.88 = 12,159,379.84/x
  3. Step 3: Cross multiply
    21,817,102.72x = 30,108,626.88 × 12,159,379.84
  4. Step 4: Simplify right side
    21,817,102.72x = 366,102,230,694,754.06
  5. Step 5: Solve for x
    x = 366,102,230,694,754.06/21,817,102.72
  6. Step 6: Final answer
    x = 16,780,515.52

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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.