Finding the Fourth Proportional to 141,197,232.08, 194,830,968.12 and 79,305,715.28
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Solution
The fourth proportional to 141,197,232.08, 194,830,968.12 and 79,305,715.28 is: 109,429,972.94
Step by Step Solution
- Step 1: Write the proportion equation
141,197,232.08 : 194,830,968.12 = 79,305,715.28 : x - Step 2: Convert to fraction form
141,197,232.08/194,830,968.12 = 79,305,715.28/x - Step 3: Cross multiply
141,197,232.08x = 194,830,968.12 × 79,305,715.28 - Step 4: Simplify right side
141,197,232.08x = 15,451,209,285,451,478 - Step 5: Solve for x
x = 15,451,209,285,451,478/141,197,232.08 - Step 6: Final answer
x = 109,429,972.94
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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.