Home / 12,880,732.80-17,775,425.60-7,079,512.96

Finding the Fourth Proportional to 12,880,732.80, 17,775,425.60 and 7,079,512.96

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Solution

The fourth proportional to 12,880,732.80, 17,775,425.60 and 7,079,512.96 is: 9,769,735.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,732.80 : 17,775,425.60 = 7,079,512.96 : x
  2. Step 2: Convert to fraction form
    12,880,732.80/17,775,425.60 = 7,079,512.96/x
  3. Step 3: Cross multiply
    12,880,732.80x = 17,775,425.60 × 7,079,512.96
  4. Step 4: Simplify right side
    12,880,732.80x = 125,841,355,904,715.78
  5. Step 5: Solve for x
    x = 125,841,355,904,715.78/12,880,732.80
  6. Step 6: Final answer
    x = 9,769,735.76

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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.