Finding the Fourth Proportional to 11,754,655.20, 17,631,982.80 and 3,118,738.95
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Solution
The fourth proportional to 11,754,655.20, 17,631,982.80 and 3,118,738.95 is: 4,678,108.43
Step by Step Solution
- Step 1: Write the proportion equation
11,754,655.20 : 17,631,982.80 = 3,118,738.95 : x - Step 2: Convert to fraction form
11,754,655.20/17,631,982.80 = 3,118,738.95/x - Step 3: Cross multiply
11,754,655.20x = 17,631,982.80 × 3,118,738.95 - Step 4: Simplify right side
11,754,655.20x = 54,989,551,524,090.06 - Step 5: Solve for x
x = 54,989,551,524,090.06/11,754,655.20 - Step 6: Final answer
x = 4,678,108.43
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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.