Home / 21,720,796.20-29,972,950.02-12,554,032.68

Finding the Fourth Proportional to 21,720,796.20, 29,972,950.02 and 12,554,032.68

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Solution

The fourth proportional to 21,720,796.20, 29,972,950.02 and 12,554,032.68 is: 17,323,554.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720,796.20 : 29,972,950.02 = 12,554,032.68 : x
  2. Step 2: Convert to fraction form
    21,720,796.20/29,972,950.02 = 12,554,032.68/x
  3. Step 3: Cross multiply
    21,720,796.20x = 29,972,950.02 × 12,554,032.68
  4. Step 4: Simplify right side
    21,720,796.20x = 376,281,394,067,086.62
  5. Step 5: Solve for x
    x = 376,281,394,067,086.62/21,720,796.20
  6. Step 6: Final answer
    x = 17,323,554.38

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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.