Finding the Fourth Proportional to 18,217,186.36, 27,287,986.26 and 10,621,113.40
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Solution
The fourth proportional to 18,217,186.36, 27,287,986.26 and 10,621,113.40 is: 15,909,635.59
Step by Step Solution
- Step 1: Write the proportion equation
18,217,186.36 : 27,287,986.26 = 10,621,113.40 : x - Step 2: Convert to fraction form
18,217,186.36/27,287,986.26 = 10,621,113.40/x - Step 3: Cross multiply
18,217,186.36x = 27,287,986.26 × 10,621,113.40 - Step 4: Simplify right side
18,217,186.36x = 289,828,796,525,101.94 - Step 5: Solve for x
x = 289,828,796,525,101.94/18,217,186.36 - Step 6: Final answer
x = 15,909,635.59
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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.