Home / 12,652,128.45-17,459,960.94-7,070,374.89

Finding the Fourth Proportional to 12,652,128.45, 17,459,960.94 and 7,070,374.89

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Solution

The fourth proportional to 12,652,128.45, 17,459,960.94 and 7,070,374.89 is: 9,757,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652,128.45 : 17,459,960.94 = 7,070,374.89 : x
  2. Step 2: Convert to fraction form
    12,652,128.45/17,459,960.94 = 7,070,374.89/x
  3. Step 3: Cross multiply
    12,652,128.45x = 17,459,960.94 × 7,070,374.89
  4. Step 4: Simplify right side
    12,652,128.45x = 123,448,469,410,556.80
  5. Step 5: Solve for x
    x = 123,448,469,410,556.80/12,652,128.45
  6. Step 6: Final answer
    x = 9,757,130.58

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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.