Home / 7,297,628.40-10,946,442.60-1,978,844.40

Finding the Fourth Proportional to 7,297,628.40, 10,946,442.60 and 1,978,844.40

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Solution

The fourth proportional to 7,297,628.40, 10,946,442.60 and 1,978,844.40 is: 2,968,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,297,628.40 : 10,946,442.60 = 1,978,844.40 : x
  2. Step 2: Convert to fraction form
    7,297,628.40/10,946,442.60 = 1,978,844.40/x
  3. Step 3: Cross multiply
    7,297,628.40x = 10,946,442.60 × 1,978,844.40
  4. Step 4: Simplify right side
    7,297,628.40x = 21,661,306,638,931.44
  5. Step 5: Solve for x
    x = 21,661,306,638,931.44/7,297,628.40
  6. Step 6: Final answer
    x = 2,968,266.60

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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.