Home / 13,628,976.32-18,807,657.72-7,517,273.60

Finding the Fourth Proportional to 13,628,976.32, 18,807,657.72 and 7,517,273.60

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Solution

The fourth proportional to 13,628,976.32, 18,807,657.72 and 7,517,273.60 is: 10,373,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628,976.32 : 18,807,657.72 = 7,517,273.60 : x
  2. Step 2: Convert to fraction form
    13,628,976.32/18,807,657.72 = 7,517,273.60/x
  3. Step 3: Cross multiply
    13,628,976.32x = 18,807,657.72 × 7,517,273.60
  4. Step 4: Simplify right side
    13,628,976.32x = 141,382,308,856,392.19
  5. Step 5: Solve for x
    x = 141,382,308,856,392.19/13,628,976.32
  6. Step 6: Final answer
    x = 10,373,655.77

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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.