Home / 21,621,338.70-29,837,450.43-11,831,785.08

Finding the Fourth Proportional to 21,621,338.70, 29,837,450.43 and 11,831,785.08

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Solution

The fourth proportional to 21,621,338.70, 29,837,450.43 and 11,831,785.08 is: 16,327,865.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621,338.70 : 29,837,450.43 = 11,831,785.08 : x
  2. Step 2: Convert to fraction form
    21,621,338.70/29,837,450.43 = 11,831,785.08/x
  3. Step 3: Cross multiply
    21,621,338.70x = 29,837,450.43 × 11,831,785.08
  4. Step 4: Simplify right side
    21,621,338.70x = 353,030,300,822,913.56
  5. Step 5: Solve for x
    x = 353,030,300,822,913.56/21,621,338.70
  6. Step 6: Final answer
    x = 16,327,865.07

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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.