Home / 28,923,664.98-39,838,035.69-21,557,892.72

Finding the Fourth Proportional to 28,923,664.98, 39,838,035.69 and 21,557,892.72

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Solution

The fourth proportional to 28,923,664.98, 39,838,035.69 and 21,557,892.72 is: 29,692,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923,664.98 : 39,838,035.69 = 21,557,892.72 : x
  2. Step 2: Convert to fraction form
    28,923,664.98/39,838,035.69 = 21,557,892.72/x
  3. Step 3: Cross multiply
    28,923,664.98x = 39,838,035.69 × 21,557,892.72
  4. Step 4: Simplify right side
    28,923,664.98x = 858,824,099,580,551.12
  5. Step 5: Solve for x
    x = 858,824,099,580,551.12/28,923,664.98
  6. Step 6: Final answer
    x = 29,692,782.72

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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.