Finding the Fourth Proportional to 7,218,774.48, 10,823,964.60 and 2,731,396.56
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Solution
The fourth proportional to 7,218,774.48, 10,823,964.60 and 2,731,396.56 is: 4,095,506.76
Step by Step Solution
- Step 1: Write the proportion equation
7,218,774.48 : 10,823,964.60 = 2,731,396.56 : x - Step 2: Convert to fraction form
7,218,774.48/10,823,964.60 = 2,731,396.56/x - Step 3: Cross multiply
7,218,774.48x = 10,823,964.60 × 2,731,396.56 - Step 4: Simplify right side
7,218,774.48x = 29,564,539,674,001.78 - Step 5: Solve for x
x = 29,564,539,674,001.78/7,218,774.48 - Step 6: Final answer
x = 4,095,506.76
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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.