Home / 20,305,525.91-30,443,140.85-12,216,606.30

Finding the Fourth Proportional to 20,305,525.91, 30,443,140.85 and 12,216,606.30

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Solution

The fourth proportional to 20,305,525.91, 30,443,140.85 and 12,216,606.30 is: 18,315,795.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305,525.91 : 30,443,140.85 = 12,216,606.30 : x
  2. Step 2: Convert to fraction form
    20,305,525.91/30,443,140.85 = 12,216,606.30/x
  3. Step 3: Cross multiply
    20,305,525.91x = 30,443,140.85 × 12,216,606.30
  4. Step 4: Simplify right side
    20,305,525.91x = 371,911,866,238,814.31
  5. Step 5: Solve for x
    x = 371,911,866,238,814.31/20,305,525.91
  6. Step 6: Final answer
    x = 18,315,795.81

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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.