Home / 21,621,475.67-29,837,638.44-11,831,919.35

Finding the Fourth Proportional to 21,621,475.67, 29,837,638.44 and 11,831,919.35

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Solution

The fourth proportional to 21,621,475.67, 29,837,638.44 and 11,831,919.35 is: 16,328,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621,475.67 : 29,837,638.44 = 11,831,919.35 : x
  2. Step 2: Convert to fraction form
    21,621,475.67/29,837,638.44 = 11,831,919.35/x
  3. Step 3: Cross multiply
    21,621,475.67x = 29,837,638.44 × 11,831,919.35
  4. Step 4: Simplify right side
    21,621,475.67x = 353,036,531,467,351.69
  5. Step 5: Solve for x
    x = 353,036,531,467,351.69/21,621,475.67
  6. Step 6: Final answer
    x = 16,328,049.80

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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.