Home / 21,160,311.76-29,201,550.18-11,869,941.22

Finding the Fourth Proportional to 21,160,311.76, 29,201,550.18 and 11,869,941.22

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Solution

The fourth proportional to 21,160,311.76, 29,201,550.18 and 11,869,941.22 is: 16,380,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,311.76 : 29,201,550.18 = 11,869,941.22 : x
  2. Step 2: Convert to fraction form
    21,160,311.76/29,201,550.18 = 11,869,941.22/x
  3. Step 3: Cross multiply
    21,160,311.76x = 29,201,550.18 × 11,869,941.22
  4. Step 4: Simplify right side
    21,160,311.76x = 346,620,684,169,480.44
  5. Step 5: Solve for x
    x = 346,620,684,169,480.44/21,160,311.76
  6. Step 6: Final answer
    x = 16,380,698.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.