Home / 12,384,432.30-18,579,600.90-5,989,425.60

Finding the Fourth Proportional to 12,384,432.30, 18,579,600.90 and 5,989,425.60

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Solution

The fourth proportional to 12,384,432.30, 18,579,600.90 and 5,989,425.60 is: 8,985,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384,432.30 : 18,579,600.90 = 5,989,425.60 : x
  2. Step 2: Convert to fraction form
    12,384,432.30/18,579,600.90 = 5,989,425.60/x
  3. Step 3: Cross multiply
    12,384,432.30x = 18,579,600.90 × 5,989,425.60
  4. Step 4: Simplify right side
    12,384,432.30x = 111,281,137,268,243.03
  5. Step 5: Solve for x
    x = 111,281,137,268,243.03/12,384,432.30
  6. Step 6: Final answer
    x = 8,985,566.28

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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.