Home / 21,407,621.63-29,542,533.23-11,618,063.28

Finding the Fourth Proportional to 21,407,621.63, 29,542,533.23 and 11,618,063.28

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Solution

The fourth proportional to 21,407,621.63, 29,542,533.23 and 11,618,063.28 is: 16,032,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407,621.63 : 29,542,533.23 = 11,618,063.28 : x
  2. Step 2: Convert to fraction form
    21,407,621.63/29,542,533.23 = 11,618,063.28/x
  3. Step 3: Cross multiply
    21,407,621.63x = 29,542,533.23 × 11,618,063.28
  4. Step 4: Simplify right side
    21,407,621.63x = 343,227,020,546,687.94
  5. Step 5: Solve for x
    x = 343,227,020,546,687.94/21,407,621.63
  6. Step 6: Final answer
    x = 16,032,935.68

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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.