Home / 21,540,691.13-29,722,088.23-12,839,673.36

Finding the Fourth Proportional to 21,540,691.13, 29,722,088.23 and 12,839,673.36

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Solution

The fourth proportional to 21,540,691.13, 29,722,088.23 and 12,839,673.36 is: 17,716,325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540,691.13 : 29,722,088.23 = 12,839,673.36 : x
  2. Step 2: Convert to fraction form
    21,540,691.13/29,722,088.23 = 12,839,673.36/x
  3. Step 3: Cross multiply
    21,540,691.13x = 29,722,088.23 × 12,839,673.36
  4. Step 4: Simplify right side
    21,540,691.13x = 381,621,904,237,491.75
  5. Step 5: Solve for x
    x = 381,621,904,237,491.75/21,540,691.13
  6. Step 6: Final answer
    x = 17,716,325.91

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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.