Finding the Fourth Proportional to 5,158,848.20, 7,738,444.42 and 2,318,968.76
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Solution
The fourth proportional to 5,158,848.20, 7,738,444.42 and 2,318,968.76 is: 3,478,530.50
Step by Step Solution
- Step 1: Write the proportion equation
5,158,848.20 : 7,738,444.42 = 2,318,968.76 : x - Step 2: Convert to fraction form
5,158,848.20/7,738,444.42 = 2,318,968.76/x - Step 3: Cross multiply
5,158,848.20x = 7,738,444.42 × 2,318,968.76 - Step 4: Simplify right side
5,158,848.20x = 17,945,210,816,486.68 - Step 5: Solve for x
x = 17,945,210,816,486.68/5,158,848.20 - Step 6: Final answer
x = 3,478,530.50
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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.