Finding the Fourth Proportional to 135,015,382.46, 186,322,122.06 and 73,135,720.28
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Solution
The fourth proportional to 135,015,382.46, 186,322,122.06 and 73,135,720.28 is: 100,927,778.40
Step by Step Solution
- Step 1: Write the proportion equation
135,015,382.46 : 186,322,122.06 = 73,135,720.28 : x - Step 2: Convert to fraction form
135,015,382.46/186,322,122.06 = 73,135,720.28/x - Step 3: Cross multiply
135,015,382.46x = 186,322,122.06 × 73,135,720.28 - Step 4: Simplify right side
135,015,382.46x = 13,626,802,600,956,178 - Step 5: Solve for x
x = 13,626,802,600,956,178/135,015,382.46 - Step 6: Final answer
x = 100,927,778.40
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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.