Finding the Fourth Proportional to 18,666,745.55, 27,977,999.93 and 7,884,025.55
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Solution
The fourth proportional to 18,666,745.55, 27,977,999.93 and 7,884,025.55 is: 11,816,696.47
Step by Step Solution
- Step 1: Write the proportion equation
18,666,745.55 : 27,977,999.93 = 7,884,025.55 : x - Step 2: Convert to fraction form
18,666,745.55/27,977,999.93 = 7,884,025.55/x - Step 3: Cross multiply
18,666,745.55x = 27,977,999.93 × 7,884,025.55 - Step 4: Simplify right side
18,666,745.55x = 220,579,266,246,598.09 - Step 5: Solve for x
x = 220,579,266,246,598.09/18,666,745.55 - Step 6: Final answer
x = 11,816,696.47
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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.