Finding the Fourth Proportional to 7,442,157.84, 11,146,961.10 and 5,276,618.76
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Solution
The fourth proportional to 7,442,157.84, 11,146,961.10 and 5,276,618.76 is: 7,903,388.42
Step by Step Solution
- Step 1: Write the proportion equation
7,442,157.84 : 11,146,961.10 = 5,276,618.76 : x - Step 2: Convert to fraction form
7,442,157.84/11,146,961.10 = 5,276,618.76/x - Step 3: Cross multiply
7,442,157.84x = 11,146,961.10 × 5,276,618.76 - Step 4: Simplify right side
7,442,157.84x = 58,818,264,057,250.23 - Step 5: Solve for x
x = 58,818,264,057,250.23/7,442,157.84 - Step 6: Final answer
x = 7,903,388.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.