Finding the Fourth Proportional to 7,232,087.49, 9,979,621.05 and 4,291,397.76
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Solution
The fourth proportional to 7,232,087.49, 9,979,621.05 and 4,291,397.76 is: 5,921,737.46
Step by Step Solution
- Step 1: Write the proportion equation
7,232,087.49 : 9,979,621.05 = 4,291,397.76 : x - Step 2: Convert to fraction form
7,232,087.49/9,979,621.05 = 4,291,397.76/x - Step 3: Cross multiply
7,232,087.49x = 9,979,621.05 × 4,291,397.76 - Step 4: Simplify right side
7,232,087.49x = 42,826,523,419,618.85 - Step 5: Solve for x
x = 42,826,523,419,618.85/7,232,087.49 - Step 6: Final answer
x = 5,921,737.46
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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.