Home / 20,948,730.44-28,904,915.36-12,245,219.48

Finding the Fourth Proportional to 20,948,730.44, 28,904,915.36 and 12,245,219.48

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Solution

The fourth proportional to 20,948,730.44, 28,904,915.36 and 12,245,219.48 is: 16,895,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948,730.44 : 28,904,915.36 = 12,245,219.48 : x
  2. Step 2: Convert to fraction form
    20,948,730.44/28,904,915.36 = 12,245,219.48/x
  3. Step 3: Cross multiply
    20,948,730.44x = 28,904,915.36 × 12,245,219.48
  4. Step 4: Simplify right side
    20,948,730.44x = 353,947,032,736,898.56
  5. Step 5: Solve for x
    x = 353,947,032,736,898.56/20,948,730.44
  6. Step 6: Final answer
    x = 16,895,870.32

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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.