Home / 30,207,964.20-45,311,946.30-18,728,838.60

Finding the Fourth Proportional to 30,207,964.20, 45,311,946.30 and 18,728,838.60

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Solution

The fourth proportional to 30,207,964.20, 45,311,946.30 and 18,728,838.60 is: 28,093,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207,964.20 : 45,311,946.30 = 18,728,838.60 : x
  2. Step 2: Convert to fraction form
    30,207,964.20/45,311,946.30 = 18,728,838.60/x
  3. Step 3: Cross multiply
    30,207,964.20x = 45,311,946.30 × 18,728,838.60
  4. Step 4: Simplify right side
    30,207,964.20x = 848,640,128,904,567.25
  5. Step 5: Solve for x
    x = 848,640,128,904,567.25/30,207,964.20
  6. Step 6: Final answer
    x = 28,093,257.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.