Finding the Fourth Proportional to 7,039,684.18, 10,540,323.05 and 5,328,640.99
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Solution
The fourth proportional to 7,039,684.18, 10,540,323.05 and 5,328,640.99 is: 7,978,425.74
Step by Step Solution
- Step 1: Write the proportion equation
7,039,684.18 : 10,540,323.05 = 5,328,640.99 : x - Step 2: Convert to fraction form
7,039,684.18/10,540,323.05 = 5,328,640.99/x - Step 3: Cross multiply
7,039,684.18x = 10,540,323.05 × 5,328,640.99 - Step 4: Simplify right side
7,039,684.18x = 56,165,597,438,604.02 - Step 5: Solve for x
x = 56,165,597,438,604.02/7,039,684.18 - Step 6: Final answer
x = 7,978,425.74
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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.