Finding the Fourth Proportional to 145,738,511.80, 218,607,767.70 and 38,033,135.80
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Solution
The fourth proportional to 145,738,511.80, 218,607,767.70 and 38,033,135.80 is: 57,049,703.70
Step by Step Solution
- Step 1: Write the proportion equation
145,738,511.80 : 218,607,767.70 = 38,033,135.80 : x - Step 2: Convert to fraction form
145,738,511.80/218,607,767.70 = 38,033,135.80/x - Step 3: Cross multiply
145,738,511.80x = 218,607,767.70 × 38,033,135.80 - Step 4: Simplify right side
145,738,511.80x = 8,314,338,915,868,953 - Step 5: Solve for x
x = 8,314,338,915,868,953/145,738,511.80 - Step 6: Final answer
x = 57,049,703.70
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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.