Finding the Fourth Proportional to 81,333,794.80, 122,000,692.20 and 27,480,329.20
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Solution
The fourth proportional to 81,333,794.80, 122,000,692.20 and 27,480,329.20 is: 41,220,493.80
Step by Step Solution
- Step 1: Write the proportion equation
81,333,794.80 : 122,000,692.20 = 27,480,329.20 : x - Step 2: Convert to fraction form
81,333,794.80/122,000,692.20 = 27,480,329.20/x - Step 3: Cross multiply
81,333,794.80x = 122,000,692.20 × 27,480,329.20 - Step 4: Simplify right side
81,333,794.80x = 3,352,619,184,283,872 - Step 5: Solve for x
x = 3,352,619,184,283,872/81,333,794.80 - Step 6: Final answer
x = 41,220,493.80
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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.