Finding the Fourth Proportional to 19,394,456.99, 29,091,684.87 and 18,424,660.19
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Solution
The fourth proportional to 19,394,456.99, 29,091,684.87 and 18,424,660.19 is: 27,636,989.70
Step by Step Solution
- Step 1: Write the proportion equation
19,394,456.99 : 29,091,684.87 = 18,424,660.19 : x - Step 2: Convert to fraction form
19,394,456.99/29,091,684.87 = 18,424,660.19/x - Step 3: Cross multiply
19,394,456.99x = 29,091,684.87 × 18,424,660.19 - Step 4: Simplify right side
19,394,456.99x = 536,004,407,938,855.88 - Step 5: Solve for x
x = 536,004,407,938,855.88/19,394,456.99 - Step 6: Final answer
x = 27,636,989.70
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1.5x scale
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.