Home / 12,687,163.40-17,505,284.61-7,180,538.14

Finding the Fourth Proportional to 12,687,163.40, 17,505,284.61 and 7,180,538.14

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Solution

The fourth proportional to 12,687,163.40, 17,505,284.61 and 7,180,538.14 is: 9,907,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,163.40 : 17,505,284.61 = 7,180,538.14 : x
  2. Step 2: Convert to fraction form
    12,687,163.40/17,505,284.61 = 7,180,538.14/x
  3. Step 3: Cross multiply
    12,687,163.40x = 17,505,284.61 × 7,180,538.14
  4. Step 4: Simplify right side
    12,687,163.40x = 125,697,363,881,606.44
  5. Step 5: Solve for x
    x = 125,697,363,881,606.44/12,687,163.40
  6. Step 6: Final answer
    x = 9,907,444.23

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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.