Finding the Fourth Proportional to 21,768,165.79, 32,656,972.60 and 6,621,703.63
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Solution
The fourth proportional to 21,768,165.79, 32,656,972.60 and 6,621,703.63 is: 9,933,992.42
Step by Step Solution
- Step 1: Write the proportion equation
21,768,165.79 : 32,656,972.60 = 6,621,703.63 : x - Step 2: Convert to fraction form
21,768,165.79/32,656,972.60 = 6,621,703.63/x - Step 3: Cross multiply
21,768,165.79x = 32,656,972.60 × 6,621,703.63 - Step 4: Simplify right side
21,768,165.79x = 216,244,794,010,230.53 - Step 5: Solve for x
x = 216,244,794,010,230.53/21,768,165.79 - Step 6: Final answer
x = 9,933,992.42
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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.