Finding the Fourth Proportional to 13,149,625.40, 19,724,438.10 and 11,721,951.80
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Solution
The fourth proportional to 13,149,625.40, 19,724,438.10 and 11,721,951.80 is: 17,582,927.70
Step by Step Solution
- Step 1: Write the proportion equation
13,149,625.40 : 19,724,438.10 = 11,721,951.80 : x - Step 2: Convert to fraction form
13,149,625.40/19,724,438.10 = 11,721,951.80/x - Step 3: Cross multiply
13,149,625.40x = 19,724,438.10 × 11,721,951.80 - Step 4: Simplify right side
13,149,625.40x = 231,208,912,690,283.62 - Step 5: Solve for x
x = 231,208,912,690,283.62/13,149,625.40 - Step 6: Final answer
x = 17,582,927.70
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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.