Home / 21,609,798.71-29,821,171.33-11,820,157.27

Finding the Fourth Proportional to 21,609,798.71, 29,821,171.33 and 11,820,157.27

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Solution

The fourth proportional to 21,609,798.71, 29,821,171.33 and 11,820,157.27 is: 16,311,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609,798.71 : 29,821,171.33 = 11,820,157.27 : x
  2. Step 2: Convert to fraction form
    21,609,798.71/29,821,171.33 = 11,820,157.27/x
  3. Step 3: Cross multiply
    21,609,798.71x = 29,821,171.33 × 11,820,157.27
  4. Step 4: Simplify right side
    21,609,798.71x = 352,490,935,069,687.44
  5. Step 5: Solve for x
    x = 352,490,935,069,687.44/21,609,798.71
  6. Step 6: Final answer
    x = 16,311,625.10

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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.