Home / 21,636,090.97-29,857,812.78-11,847,154.30

Finding the Fourth Proportional to 21,636,090.97, 29,857,812.78 and 11,847,154.30

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Solution

The fourth proportional to 21,636,090.97, 29,857,812.78 and 11,847,154.30 is: 16,349,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636,090.97 : 29,857,812.78 = 11,847,154.30 : x
  2. Step 2: Convert to fraction form
    21,636,090.97/29,857,812.78 = 11,847,154.30/x
  3. Step 3: Cross multiply
    21,636,090.97x = 29,857,812.78 × 11,847,154.30
  4. Step 4: Simplify right side
    21,636,090.97x = 353,730,115,065,172
  5. Step 5: Solve for x
    x = 353,730,115,065,172/21,636,090.97
  6. Step 6: Final answer
    x = 16,349,076.90

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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.