Home / 12,455,616.20-18,683,424.30-3,938,563.40

Finding the Fourth Proportional to 12,455,616.20, 18,683,424.30 and 3,938,563.40

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Solution

The fourth proportional to 12,455,616.20, 18,683,424.30 and 3,938,563.40 is: 5,907,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,616.20 : 18,683,424.30 = 3,938,563.40 : x
  2. Step 2: Convert to fraction form
    12,455,616.20/18,683,424.30 = 3,938,563.40/x
  3. Step 3: Cross multiply
    12,455,616.20x = 18,683,424.30 × 3,938,563.40
  4. Step 4: Simplify right side
    12,455,616.20x = 73,585,851,134,650.62
  5. Step 5: Solve for x
    x = 73,585,851,134,650.62/12,455,616.20
  6. Step 6: Final answer
    x = 5,907,845.10

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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.