Finding the Fourth Proportional to 19,991,286.18, 29,986,929.24 and 4,845,217.68
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Solution
The fourth proportional to 19,991,286.18, 29,986,929.24 and 4,845,217.68 is: 7,267,826.51
Step by Step Solution
- Step 1: Write the proportion equation
19,991,286.18 : 29,986,929.24 = 4,845,217.68 : x - Step 2: Convert to fraction form
19,991,286.18/29,986,929.24 = 4,845,217.68/x - Step 3: Cross multiply
19,991,286.18x = 29,986,929.24 × 4,845,217.68 - Step 4: Simplify right side
19,991,286.18x = 145,293,199,722,556.94 - Step 5: Solve for x
x = 145,293,199,722,556.94/19,991,286.18 - Step 6: Final answer
x = 7,267,826.51
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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.