Home / 13,188,777.30-18,200,619.56-7,308,509.72

Finding the Fourth Proportional to 13,188,777.30, 18,200,619.56 and 7,308,509.72

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Solution

The fourth proportional to 13,188,777.30, 18,200,619.56 and 7,308,509.72 is: 10,085,802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,777.30 : 18,200,619.56 = 7,308,509.72 : x
  2. Step 2: Convert to fraction form
    13,188,777.30/18,200,619.56 = 7,308,509.72/x
  3. Step 3: Cross multiply
    13,188,777.30x = 18,200,619.56 × 7,308,509.72
  4. Step 4: Simplify right side
    13,188,777.30x = 133,019,404,964,282.11
  5. Step 5: Solve for x
    x = 133,019,404,964,282.11/13,188,777.30
  6. Step 6: Final answer
    x = 10,085,802.64

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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.