Home / 12,418,340.31-18,630,610.38-4,331,432.16

Finding the Fourth Proportional to 12,418,340.31, 18,630,610.38 and 4,331,432.16

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Solution

The fourth proportional to 12,418,340.31, 18,630,610.38 and 4,331,432.16 is: 6,498,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418,340.31 : 18,630,610.38 = 4,331,432.16 : x
  2. Step 2: Convert to fraction form
    12,418,340.31/18,630,610.38 = 4,331,432.16/x
  3. Step 3: Cross multiply
    12,418,340.31x = 18,630,610.38 × 4,331,432.16
  4. Step 4: Simplify right side
    12,418,340.31x = 80,697,224,960,361.81
  5. Step 5: Solve for x
    x = 80,697,224,960,361.81/12,418,340.31
  6. Step 6: Final answer
    x = 6,498,229.47

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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.