Finding the Fourth Proportional to 9,989,563.49, 13,785,597.17 and 5,405,884.99
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Solution
The fourth proportional to 9,989,563.49, 13,785,597.17 and 5,405,884.99 is: 7,460,121.04
Step by Step Solution
- Step 1: Write the proportion equation
9,989,563.49 : 13,785,597.17 = 5,405,884.99 : x - Step 2: Convert to fraction form
9,989,563.49/13,785,597.17 = 5,405,884.99/x - Step 3: Cross multiply
9,989,563.49x = 13,785,597.17 × 5,405,884.99 - Step 4: Simplify right side
9,989,563.49x = 74,523,352,819,489.48 - Step 5: Solve for x
x = 74,523,352,819,489.48/9,989,563.49 - Step 6: Final answer
x = 7,460,121.04
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.