Finding the Fourth Proportional to 7,178,552.80, 10,764,135.60 and 2,129,207.20
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Solution
The fourth proportional to 7,178,552.80, 10,764,135.60 and 2,129,207.20 is: 3,192,715.25
Step by Step Solution
- Step 1: Write the proportion equation
7,178,552.80 : 10,764,135.60 = 2,129,207.20 : x - Step 2: Convert to fraction form
7,178,552.80/10,764,135.60 = 2,129,207.20/x - Step 3: Cross multiply
7,178,552.80x = 10,764,135.60 × 2,129,207.20 - Step 4: Simplify right side
7,178,552.80x = 22,919,075,021,296.32 - Step 5: Solve for x
x = 22,919,075,021,296.32/7,178,552.80 - Step 6: Final answer
x = 3,192,715.25
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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.