Home / 28,892,942.59-39,872,251.12-15,839,921.25

Finding the Fourth Proportional to 28,892,942.59, 39,872,251.12 and 15,839,921.25

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Solution

The fourth proportional to 28,892,942.59, 39,872,251.12 and 15,839,921.25 is: 21,859,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892,942.59 : 39,872,251.12 = 15,839,921.25 : x
  2. Step 2: Convert to fraction form
    28,892,942.59/39,872,251.12 = 15,839,921.25/x
  3. Step 3: Cross multiply
    28,892,942.59x = 39,872,251.12 × 15,839,921.25
  4. Step 4: Simplify right side
    28,892,942.59x = 631,573,317,801,024.25
  5. Step 5: Solve for x
    x = 631,573,317,801,024.25/28,892,942.59
  6. Step 6: Final answer
    x = 21,859,086.03

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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.