Home / 21,665,161.71-29,898,284.49-11,742,361.20

Finding the Fourth Proportional to 21,665,161.71, 29,898,284.49 and 11,742,361.20

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Solution

The fourth proportional to 21,665,161.71, 29,898,284.49 and 11,742,361.20 is: 16,204,654.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,665,161.71 : 29,898,284.49 = 11,742,361.20 : x
  2. Step 2: Convert to fraction form
    21,665,161.71/29,898,284.49 = 11,742,361.20/x
  3. Step 3: Cross multiply
    21,665,161.71x = 29,898,284.49 × 11,742,361.20
  4. Step 4: Simplify right side
    21,665,161.71x = 351,076,455,741,937.75
  5. Step 5: Solve for x
    x = 351,076,455,741,937.75/21,665,161.71
  6. Step 6: Final answer
    x = 16,204,654.29

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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.