Finding the Fourth Proportional to 5,112,731.80, 7,639,148.21 and 4,933,928.08
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Solution
The fourth proportional to 5,112,731.80, 7,639,148.21 and 4,933,928.08 is: 7,371,990.03
Step by Step Solution
- Step 1: Write the proportion equation
5,112,731.80 : 7,639,148.21 = 4,933,928.08 : x - Step 2: Convert to fraction form
5,112,731.80/7,639,148.21 = 4,933,928.08/x - Step 3: Cross multiply
5,112,731.80x = 7,639,148.21 × 4,933,928.08 - Step 4: Simplify right side
5,112,731.80x = 37,691,007,860,600.73 - Step 5: Solve for x
x = 37,691,007,860,600.73/5,112,731.80 - Step 6: Final answer
x = 7,371,990.03
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.