Home / 21,121,532.20-31,682,298.30-16,870,004.20

Finding the Fourth Proportional to 21,121,532.20, 31,682,298.30 and 16,870,004.20

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Solution

The fourth proportional to 21,121,532.20, 31,682,298.30 and 16,870,004.20 is: 25,305,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,532.20 : 31,682,298.30 = 16,870,004.20 : x
  2. Step 2: Convert to fraction form
    21,121,532.20/31,682,298.30 = 16,870,004.20/x
  3. Step 3: Cross multiply
    21,121,532.20x = 31,682,298.30 × 16,870,004.20
  4. Step 4: Simplify right side
    21,121,532.20x = 534,480,505,386,652.88
  5. Step 5: Solve for x
    x = 534,480,505,386,652.88/21,121,532.20
  6. Step 6: Final answer
    x = 25,305,006.30

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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.