Finding the Fourth Proportional to 21,387,621.92, 32,068,619.36 and 6,808,242.56
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Solution
The fourth proportional to 21,387,621.92, 32,068,619.36 and 6,808,242.56 is: 10,208,284.96
Step by Step Solution
- Step 1: Write the proportion equation
21,387,621.92 : 32,068,619.36 = 6,808,242.56 : x - Step 2: Convert to fraction form
21,387,621.92/32,068,619.36 = 6,808,242.56/x - Step 3: Cross multiply
21,387,621.92x = 32,068,619.36 × 6,808,242.56 - Step 4: Simplify right side
21,387,621.92x = 218,330,939,167,191.94 - Step 5: Solve for x
x = 218,330,939,167,191.94/21,387,621.92 - Step 6: Final answer
x = 10,208,284.96
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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.