Home / 12,319,912.78-16,996,342.45-7,091,669.97

Finding the Fourth Proportional to 12,319,912.78, 16,996,342.45 and 7,091,669.97

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Solution

The fourth proportional to 12,319,912.78, 16,996,342.45 and 7,091,669.97 is: 9,783,547.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319,912.78 : 16,996,342.45 = 7,091,669.97 : x
  2. Step 2: Convert to fraction form
    12,319,912.78/16,996,342.45 = 7,091,669.97/x
  3. Step 3: Cross multiply
    12,319,912.78x = 16,996,342.45 × 7,091,669.97
  4. Step 4: Simplify right side
    12,319,912.78x = 120,532,451,352,501.22
  5. Step 5: Solve for x
    x = 120,532,451,352,501.22/12,319,912.78
  6. Step 6: Final answer
    x = 9,783,547.46

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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.