Finding the Fourth Proportional to 7,048,039.80, 10,572,059.70 and 4,213,687.80
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Solution
The fourth proportional to 7,048,039.80, 10,572,059.70 and 4,213,687.80 is: 6,320,531.70
Step by Step Solution
- Step 1: Write the proportion equation
7,048,039.80 : 10,572,059.70 = 4,213,687.80 : x - Step 2: Convert to fraction form
7,048,039.80/10,572,059.70 = 4,213,687.80/x - Step 3: Cross multiply
7,048,039.80x = 10,572,059.70 × 4,213,687.80 - Step 4: Simplify right side
7,048,039.80x = 44,547,358,978,761.66 - Step 5: Solve for x
x = 44,547,358,978,761.66/7,048,039.80 - Step 6: Final answer
x = 6,320,531.70
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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.