Finding the Fourth Proportional to 78,418,562.70, 117,627,844.05 and 27,283,586.70
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Solution
The fourth proportional to 78,418,562.70, 117,627,844.05 and 27,283,586.70 is: 40,925,380.05
Step by Step Solution
- Step 1: Write the proportion equation
78,418,562.70 : 117,627,844.05 = 27,283,586.70 : x - Step 2: Convert to fraction form
78,418,562.70/117,627,844.05 = 27,283,586.70/x - Step 3: Cross multiply
78,418,562.70x = 117,627,844.05 × 27,283,586.70 - Step 4: Simplify right side
78,418,562.70x = 3,209,309,481,472,254 - Step 5: Solve for x
x = 3,209,309,481,472,254/78,418,562.70 - Step 6: Final answer
x = 40,925,380.05
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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.