Home / 12,139,209-16,751,912.40-6,632,466.12

Finding the Fourth Proportional to 12,139,209, 16,751,912.40 and 6,632,466.12

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Solution

The fourth proportional to 12,139,209, 16,751,912.40 and 6,632,466.12 is: 9,152,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139,209 : 16,751,912.40 = 6,632,466.12 : x
  2. Step 2: Convert to fraction form
    12,139,209/16,751,912.40 = 6,632,466.12/x
  3. Step 3: Cross multiply
    12,139,209x = 16,751,912.40 × 6,632,466.12
  4. Step 4: Simplify right side
    12,139,209x = 111,106,491,438,207.89
  5. Step 5: Solve for x
    x = 111,106,491,438,207.89/12,139,209
  6. Step 6: Final answer
    x = 9,152,696.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.