Finding the Fourth Proportional to 18,643,564.40, 27,918,107.40 and 14,864,428.40
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Solution
The fourth proportional to 18,643,564.40, 27,918,107.40 and 14,864,428.40 is: 22,258,979.00
Step by Step Solution
- Step 1: Write the proportion equation
18,643,564.40 : 27,918,107.40 = 14,864,428.40 : x - Step 2: Convert to fraction form
18,643,564.40/27,918,107.40 = 14,864,428.40/x - Step 3: Cross multiply
18,643,564.40x = 27,918,107.40 × 14,864,428.40 - Step 4: Simplify right side
18,643,564.40x = 414,986,708,510,810.12 - Step 5: Solve for x
x = 414,986,708,510,810.12/18,643,564.40 - Step 6: Final answer
x = 22,258,979.00
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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.