Home / 18,946,913.60-28,414,149.60-6,978,094.40

Finding the Fourth Proportional to 18,946,913.60, 28,414,149.60 and 6,978,094.40

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Solution

The fourth proportional to 18,946,913.60, 28,414,149.60 and 6,978,094.40 is: 10,464,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946,913.60 : 28,414,149.60 = 6,978,094.40 : x
  2. Step 2: Convert to fraction form
    18,946,913.60/28,414,149.60 = 6,978,094.40/x
  3. Step 3: Cross multiply
    18,946,913.60x = 28,414,149.60 × 6,978,094.40
  4. Step 4: Simplify right side
    18,946,913.60x = 198,276,618,204,522.25
  5. Step 5: Solve for x
    x = 198,276,618,204,522.25/18,946,913.60
  6. Step 6: Final answer
    x = 10,464,850.50

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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.