Finding the Fourth Proportional to 92,368,951.36, 126,790,161.16 and 81,680,787.11
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Solution
The fourth proportional to 92,368,951.36, 126,790,161.16 and 81,680,787.11 is: 112,119,061.75
Step by Step Solution
- Step 1: Write the proportion equation
92,368,951.36 : 126,790,161.16 = 81,680,787.11 : x - Step 2: Convert to fraction form
92,368,951.36/126,790,161.16 = 81,680,787.11/x - Step 3: Cross multiply
92,368,951.36x = 126,790,161.16 × 81,680,787.11 - Step 4: Simplify right side
92,368,951.36x = 10,356,320,161,352,550 - Step 5: Solve for x
x = 10,356,320,161,352,550/92,368,951.36 - Step 6: Final answer
x = 112,119,061.75
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.