Finding the Fourth Proportional to 7,156,769.94, 9,876,385.47 and 3,893,608.08
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Solution
The fourth proportional to 7,156,769.94, 9,876,385.47 and 3,893,608.08 is: 5,373,202.52
Step by Step Solution
- Step 1: Write the proportion equation
7,156,769.94 : 9,876,385.47 = 3,893,608.08 : x - Step 2: Convert to fraction form
7,156,769.94/9,876,385.47 = 3,893,608.08/x - Step 3: Cross multiply
7,156,769.94x = 9,876,385.47 × 3,893,608.08 - Step 4: Simplify right side
7,156,769.94x = 38,454,774,267,186.60 - Step 5: Solve for x
x = 38,454,774,267,186.60/7,156,769.94 - Step 6: Final answer
x = 5,373,202.52
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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.