Home / 28,892,838.31-39,872,107.24-15,839,817.30

Finding the Fourth Proportional to 28,892,838.31, 39,872,107.24 and 15,839,817.30

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Solution

The fourth proportional to 28,892,838.31, 39,872,107.24 and 15,839,817.30 is: 21,858,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892,838.31 : 39,872,107.24 = 15,839,817.30 : x
  2. Step 2: Convert to fraction form
    28,892,838.31/39,872,107.24 = 15,839,817.30/x
  3. Step 3: Cross multiply
    28,892,838.31x = 39,872,107.24 × 15,839,817.30
  4. Step 4: Simplify right side
    28,892,838.31x = 631,566,894,008,007.75
  5. Step 5: Solve for x
    x = 631,566,894,008,007.75/28,892,838.31
  6. Step 6: Final answer
    x = 21,858,942.60

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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.