Home / 20,199,429.80-30,303,081.30-8,684,874.80

Finding the Fourth Proportional to 20,199,429.80, 30,303,081.30 and 8,684,874.80

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Solution

The fourth proportional to 20,199,429.80, 30,303,081.30 and 8,684,874.80 is: 13,029,004.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,429.80 : 30,303,081.30 = 8,684,874.80 : x
  2. Step 2: Convert to fraction form
    20,199,429.80/30,303,081.30 = 8,684,874.80/x
  3. Step 3: Cross multiply
    20,199,429.80x = 30,303,081.30 × 8,684,874.80
  4. Step 4: Simplify right side
    20,199,429.80x = 263,178,467,144,721.28
  5. Step 5: Solve for x
    x = 263,178,467,144,721.28/20,199,429.80
  6. Step 6: Final answer
    x = 13,029,004.77

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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.