Finding the Fourth Proportional to 12,472,922.40, 18,709,429.65 and 3,836,962.99
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Solution
The fourth proportional to 12,472,922.40, 18,709,429.65 and 3,836,962.99 is: 5,755,458.65
Step by Step Solution
- Step 1: Write the proportion equation
12,472,922.40 : 18,709,429.65 = 3,836,962.99 : x - Step 2: Convert to fraction form
12,472,922.40/18,709,429.65 = 3,836,962.99/x - Step 3: Cross multiply
12,472,922.40x = 18,709,429.65 × 3,836,962.99 - Step 4: Simplify right side
12,472,922.40x = 71,787,389,131,058.66 - Step 5: Solve for x
x = 71,787,389,131,058.66/12,472,922.40 - Step 6: Final answer
x = 5,755,458.65
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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.