Finding the Fourth Proportional to 68,115,133.68, 94,077,079.95 and 49,612,705.44
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Solution
The fourth proportional to 68,115,133.68, 94,077,079.95 and 49,612,705.44 is: 68,522,488.38
Step by Step Solution
- Step 1: Write the proportion equation
68,115,133.68 : 94,077,079.95 = 49,612,705.44 : x - Step 2: Convert to fraction form
68,115,133.68/94,077,079.95 = 49,612,705.44/x - Step 3: Cross multiply
68,115,133.68x = 94,077,079.95 × 49,612,705.44 - Step 4: Simplify right side
68,115,133.68x = 4,667,418,456,214,680 - Step 5: Solve for x
x = 4,667,418,456,214,680/68,115,133.68 - Step 6: Final answer
x = 68,522,488.38
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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.