Finding the Fourth Proportional to 21,323,007.36, 31,984,485.12 and 6,946,051.68
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Solution
The fourth proportional to 21,323,007.36, 31,984,485.12 and 6,946,051.68 is: 10,419,069.08
Step by Step Solution
- Step 1: Write the proportion equation
21,323,007.36 : 31,984,485.12 = 6,946,051.68 : x - Step 2: Convert to fraction form
21,323,007.36/31,984,485.12 = 6,946,051.68/x - Step 3: Cross multiply
21,323,007.36x = 31,984,485.12 × 6,946,051.68 - Step 4: Simplify right side
21,323,007.36x = 222,165,886,601,711 - Step 5: Solve for x
x = 222,165,886,601,711/21,323,007.36 - Step 6: Final answer
x = 10,419,069.08
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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.