Finding the Fourth Proportional to 117,908,611.28, 162,714,528.96 and 68,378,351.48
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Solution
The fourth proportional to 117,908,611.28, 162,714,528.96 and 68,378,351.48 is: 94,362,499.32
Step by Step Solution
- Step 1: Write the proportion equation
117,908,611.28 : 162,714,528.96 = 68,378,351.48 : x - Step 2: Convert to fraction form
117,908,611.28/162,714,528.96 = 68,378,351.48/x - Step 3: Cross multiply
117,908,611.28x = 162,714,528.96 × 68,378,351.48 - Step 4: Simplify right side
117,908,611.28x = 11,126,151,252,129,520 - Step 5: Solve for x
x = 11,126,151,252,129,520/117,908,611.28 - Step 6: Final answer
x = 94,362,499.32
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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.