Finding the Fourth Proportional to 19,394,441.40, 29,091,662.10 and 17,756,815.80
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Solution
The fourth proportional to 19,394,441.40, 29,091,662.10 and 17,756,815.80 is: 26,635,223.70
Step by Step Solution
- Step 1: Write the proportion equation
19,394,441.40 : 29,091,662.10 = 17,756,815.80 : x - Step 2: Convert to fraction form
19,394,441.40/29,091,662.10 = 17,756,815.80/x - Step 3: Cross multiply
19,394,441.40x = 29,091,662.10 × 17,756,815.80 - Step 4: Simplify right side
19,394,441.40x = 516,575,285,225,541.25 - Step 5: Solve for x
x = 516,575,285,225,541.25/19,394,441.40 - Step 6: Final answer
x = 26,635,223.70
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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.