Home / 20,802,890.60-31,183,340.70-9,451,485.80

Finding the Fourth Proportional to 20,802,890.60, 31,183,340.70 and 9,451,485.80

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Solution

The fourth proportional to 20,802,890.60, 31,183,340.70 and 9,451,485.80 is: 14,167,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,890.60 : 31,183,340.70 = 9,451,485.80 : x
  2. Step 2: Convert to fraction form
    20,802,890.60/31,183,340.70 = 9,451,485.80/x
  3. Step 3: Cross multiply
    20,802,890.60x = 31,183,340.70 × 9,451,485.80
  4. Step 4: Simplify right side
    20,802,890.60x = 294,728,901,822,612.06
  5. Step 5: Solve for x
    x = 294,728,901,822,612.06/20,802,890.60
  6. Step 6: Final answer
    x = 14,167,689.84

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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.