Home / 28,784,490.09-39,722,500.98-15,731,745.45

Finding the Fourth Proportional to 28,784,490.09, 39,722,500.98 and 15,731,745.45

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Solution

The fourth proportional to 28,784,490.09, 39,722,500.98 and 15,731,745.45 is: 21,709,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784,490.09 : 39,722,500.98 = 15,731,745.45 : x
  2. Step 2: Convert to fraction form
    28,784,490.09/39,722,500.98 = 15,731,745.45/x
  3. Step 3: Cross multiply
    28,784,490.09x = 39,722,500.98 × 15,731,745.45
  4. Step 4: Simplify right side
    28,784,490.09x = 624,904,274,054,735.50
  5. Step 5: Solve for x
    x = 624,904,274,054,735.50/28,784,490.09
  6. Step 6: Final answer
    x = 21,709,756.61

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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.