Finding the Fourth Proportional to 12,458,270.31, 18,690,311.99 and 4,260,976.14
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Solution
The fourth proportional to 12,458,270.31, 18,690,311.99 and 4,260,976.14 is: 6,392,458.31
Step by Step Solution
- Step 1: Write the proportion equation
12,458,270.31 : 18,690,311.99 = 4,260,976.14 : x - Step 2: Convert to fraction form
12,458,270.31/18,690,311.99 = 4,260,976.14/x - Step 3: Cross multiply
12,458,270.31x = 18,690,311.99 × 4,260,976.14 - Step 4: Simplify right side
12,458,270.31x = 79,638,973,519,287.03 - Step 5: Solve for x
x = 79,638,973,519,287.03/12,458,270.31 - Step 6: Final answer
x = 6,392,458.31
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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.