Home / 20,807,999.20-31,211,998.80-17,448,767.20

Finding the Fourth Proportional to 20,807,999.20, 31,211,998.80 and 17,448,767.20

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Solution

The fourth proportional to 20,807,999.20, 31,211,998.80 and 17,448,767.20 is: 26,173,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,999.20 : 31,211,998.80 = 17,448,767.20 : x
  2. Step 2: Convert to fraction form
    20,807,999.20/31,211,998.80 = 17,448,767.20/x
  3. Step 3: Cross multiply
    20,807,999.20x = 31,211,998.80 × 17,448,767.20
  4. Step 4: Simplify right side
    20,807,999.20x = 544,610,900,907,879.38
  5. Step 5: Solve for x
    x = 544,610,900,907,879.38/20,807,999.20
  6. Step 6: Final answer
    x = 26,173,150.80

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1.5x scale

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.