Home / 18,946,915.60-28,414,152.60-6,978,096.40

Finding the Fourth Proportional to 18,946,915.60, 28,414,152.60 and 6,978,096.40

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Solution

The fourth proportional to 18,946,915.60, 28,414,152.60 and 6,978,096.40 is: 10,464,853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946,915.60 : 28,414,152.60 = 6,978,096.40 : x
  2. Step 2: Convert to fraction form
    18,946,915.60/28,414,152.60 = 6,978,096.40/x
  3. Step 3: Cross multiply
    18,946,915.60x = 28,414,152.60 × 6,978,096.40
  4. Step 4: Simplify right side
    18,946,915.60x = 198,276,695,967,110.66
  5. Step 5: Solve for x
    x = 198,276,695,967,110.66/18,946,915.60
  6. Step 6: Final answer
    x = 10,464,853.50

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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.