Finding the Fourth Proportional to 18,509,549.28, 27,772,253.28 and 7,157,969.52
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Solution
The fourth proportional to 18,509,549.28, 27,772,253.28 and 7,157,969.52 is: 10,740,020.70
Step by Step Solution
- Step 1: Write the proportion equation
18,509,549.28 : 27,772,253.28 = 7,157,969.52 : x - Step 2: Convert to fraction form
18,509,549.28/27,772,253.28 = 7,157,969.52/x - Step 3: Cross multiply
18,509,549.28x = 27,772,253.28 × 7,157,969.52 - Step 4: Simplify right side
18,509,549.28x = 198,792,942,479,960.03 - Step 5: Solve for x
x = 198,792,942,479,960.03/18,509,549.28 - Step 6: Final answer
x = 10,740,020.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.