Finding the Fourth Proportional to 21,387,444.20, 32,081,166.30 and 6,242,906.60
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Solution
The fourth proportional to 21,387,444.20, 32,081,166.30 and 6,242,906.60 is: 9,364,359.90
Step by Step Solution
- Step 1: Write the proportion equation
21,387,444.20 : 32,081,166.30 = 6,242,906.60 : x - Step 2: Convert to fraction form
21,387,444.20/32,081,166.30 = 6,242,906.60/x - Step 3: Cross multiply
21,387,444.20x = 32,081,166.30 × 6,242,906.60 - Step 4: Simplify right side
21,387,444.20x = 200,279,724,829,967.56 - Step 5: Solve for x
x = 200,279,724,829,967.56/21,387,444.20 - Step 6: Final answer
x = 9,364,359.90
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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.