Finding the Fourth Proportional to 98,331,566.40, 147,497,349.60 and 47,313,230.40
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Solution
The fourth proportional to 98,331,566.40, 147,497,349.60 and 47,313,230.40 is: 70,969,845.60
Step by Step Solution
- Step 1: Write the proportion equation
98,331,566.40 : 147,497,349.60 = 47,313,230.40 : x - Step 2: Convert to fraction form
98,331,566.40/147,497,349.60 = 47,313,230.40/x - Step 3: Cross multiply
98,331,566.40x = 147,497,349.60 × 47,313,230.40 - Step 4: Simplify right side
98,331,566.40x = 6,978,576,085,014,147 - Step 5: Solve for x
x = 6,978,576,085,014,147/98,331,566.40 - Step 6: Final answer
x = 70,969,845.60
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1.5x scale
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.