Home / 21,102,712.54-29,124,801.81-12,160,083.01

Finding the Fourth Proportional to 21,102,712.54, 29,124,801.81 and 12,160,083.01

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Solution

The fourth proportional to 21,102,712.54, 29,124,801.81 and 12,160,083.01 is: 16,782,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102,712.54 : 29,124,801.81 = 12,160,083.01 : x
  2. Step 2: Convert to fraction form
    21,102,712.54/29,124,801.81 = 12,160,083.01/x
  3. Step 3: Cross multiply
    21,102,712.54x = 29,124,801.81 × 12,160,083.01
  4. Step 4: Simplify right side
    21,102,712.54x = 354,160,007,659,398.25
  5. Step 5: Solve for x
    x = 354,160,007,659,398.25/21,102,712.54
  6. Step 6: Final answer
    x = 16,782,676.97

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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.