Finding the Fourth Proportional to 18,461,871.92, 27,693,988.86 and 7,102,320.54
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Solution
The fourth proportional to 18,461,871.92, 27,693,988.86 and 7,102,320.54 is: 10,653,935.14
Step by Step Solution
- Step 1: Write the proportion equation
18,461,871.92 : 27,693,988.86 = 7,102,320.54 : x - Step 2: Convert to fraction form
18,461,871.92/27,693,988.86 = 7,102,320.54/x - Step 3: Cross multiply
18,461,871.92x = 27,693,988.86 × 7,102,320.54 - Step 4: Simplify right side
18,461,871.92x = 196,691,585,914,909.19 - Step 5: Solve for x
x = 196,691,585,914,909.19/18,461,871.92 - Step 6: Final answer
x = 10,653,935.14
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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.