Home / 21,510,471.90-29,684,067.75-11,721,000.63

Finding the Fourth Proportional to 21,510,471.90, 29,684,067.75 and 11,721,000.63

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Solution

The fourth proportional to 21,510,471.90, 29,684,067.75 and 11,721,000.63 is: 16,174,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,510,471.90 : 29,684,067.75 = 11,721,000.63 : x
  2. Step 2: Convert to fraction form
    21,510,471.90/29,684,067.75 = 11,721,000.63/x
  3. Step 3: Cross multiply
    21,510,471.90x = 29,684,067.75 × 11,721,000.63
  4. Step 4: Simplify right side
    21,510,471.90x = 347,926,976,798,712.69
  5. Step 5: Solve for x
    x = 347,926,976,798,712.69/21,510,471.90
  6. Step 6: Final answer
    x = 16,174,771.92

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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.