Finding the Fourth Proportional to 11,821,539.20, 17,718,530.70 and 5,432,437.40
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Solution
The fourth proportional to 11,821,539.20, 17,718,530.70 and 5,432,437.40 is: 8,142,324.55
Step by Step Solution
- Step 1: Write the proportion equation
11,821,539.20 : 17,718,530.70 = 5,432,437.40 : x - Step 2: Convert to fraction form
11,821,539.20/17,718,530.70 = 5,432,437.40/x - Step 3: Cross multiply
11,821,539.20x = 17,718,530.70 × 5,432,437.40 - Step 4: Simplify right side
11,821,539.20x = 96,254,808,847,728.19 - Step 5: Solve for x
x = 96,254,808,847,728.19/11,821,539.20 - Step 6: Final answer
x = 8,142,324.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.