Finding the Fourth Proportional to 7,439,792.49, 11,138,009.73 and 5,529,163.68
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Solution
The fourth proportional to 7,439,792.49, 11,138,009.73 and 5,529,163.68 is: 8,277,633.95
Step by Step Solution
- Step 1: Write the proportion equation
7,439,792.49 : 11,138,009.73 = 5,529,163.68 : x - Step 2: Convert to fraction form
7,439,792.49/11,138,009.73 = 5,529,163.68/x - Step 3: Cross multiply
7,439,792.49x = 11,138,009.73 × 5,529,163.68 - Step 4: Simplify right side
7,439,792.49x = 61,583,878,866,602.61 - Step 5: Solve for x
x = 61,583,878,866,602.61/7,439,792.49 - Step 6: Final answer
x = 8,277,633.95
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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.