Home / 21,116,673-31,686,992.21-11,401,156.51

Finding the Fourth Proportional to 21,116,673, 31,686,992.21 and 11,401,156.51

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Solution

The fourth proportional to 21,116,673, 31,686,992.21 and 11,401,156.51 is: 17,108,204.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116,673 : 31,686,992.21 = 11,401,156.51 : x
  2. Step 2: Convert to fraction form
    21,116,673/31,686,992.21 = 11,401,156.51/x
  3. Step 3: Cross multiply
    21,116,673x = 31,686,992.21 × 11,401,156.51
  4. Step 4: Simplify right side
    21,116,673x = 361,268,357,517,360.81
  5. Step 5: Solve for x
    x = 361,268,357,517,360.81/21,116,673
  6. Step 6: Final answer
    x = 17,108,204.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.