Finding the Fourth Proportional to 19,868,803.80, 29,803,205.70 and 13,482,115.80
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Solution
The fourth proportional to 19,868,803.80, 29,803,205.70 and 13,482,115.80 is: 20,223,173.70
Step by Step Solution
- Step 1: Write the proportion equation
19,868,803.80 : 29,803,205.70 = 13,482,115.80 : x - Step 2: Convert to fraction form
19,868,803.80/29,803,205.70 = 13,482,115.80/x - Step 3: Cross multiply
19,868,803.80x = 29,803,205.70 × 13,482,115.80 - Step 4: Simplify right side
19,868,803.80x = 401,810,270,458,620.06 - Step 5: Solve for x
x = 401,810,270,458,620.06/19,868,803.80 - Step 6: Final answer
x = 20,223,173.70
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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.