Finding the Fourth Proportional to 19,858,403.40, 29,787,012.18 and 5,482,348.44
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Solution
The fourth proportional to 19,858,403.40, 29,787,012.18 and 5,482,348.44 is: 8,223,358.97
Step by Step Solution
- Step 1: Write the proportion equation
19,858,403.40 : 29,787,012.18 = 5,482,348.44 : x - Step 2: Convert to fraction form
19,858,403.40/29,787,012.18 = 5,482,348.44/x - Step 3: Cross multiply
19,858,403.40x = 29,787,012.18 × 5,482,348.44 - Step 4: Simplify right side
19,858,403.40x = 163,302,779,757,284 - Step 5: Solve for x
x = 163,302,779,757,284/19,858,403.40 - Step 6: Final answer
x = 8,223,358.97
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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.