Finding the Fourth Proportional to 5,363,840.48, 8,045,692.68 and 1,320,378.80
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Solution
The fourth proportional to 5,363,840.48, 8,045,692.68 and 1,320,378.80 is: 1,980,551.45
Step by Step Solution
- Step 1: Write the proportion equation
5,363,840.48 : 8,045,692.68 = 1,320,378.80 : x - Step 2: Convert to fraction form
5,363,840.48/8,045,692.68 = 1,320,378.80/x - Step 3: Cross multiply
5,363,840.48x = 8,045,692.68 × 1,320,378.80 - Step 4: Simplify right side
5,363,840.48x = 10,623,362,045,987.18 - Step 5: Solve for x
x = 10,623,362,045,987.18/5,363,840.48 - Step 6: Final answer
x = 1,980,551.45
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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.