Finding the Fourth Proportional to 7,883,670.05, 11,825,505.08 and 7,750,809.80
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Solution
The fourth proportional to 7,883,670.05, 11,825,505.08 and 7,750,809.80 is: 11,626,214.70
Step by Step Solution
- Step 1: Write the proportion equation
7,883,670.05 : 11,825,505.08 = 7,750,809.80 : x - Step 2: Convert to fraction form
7,883,670.05/11,825,505.08 = 7,750,809.80/x - Step 3: Cross multiply
7,883,670.05x = 11,825,505.08 × 7,750,809.80 - Step 4: Simplify right side
7,883,670.05x = 91,657,240,664,013.78 - Step 5: Solve for x
x = 91,657,240,664,013.78/7,883,670.05 - Step 6: Final answer
x = 11,626,214.70
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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.