Finding the Fourth Proportional to 18,621,728.18, 27,932,607.99 and 8,904,054.75
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Solution
The fourth proportional to 18,621,728.18, 27,932,607.99 and 8,904,054.75 is: 13,356,089.64
Step by Step Solution
- Step 1: Write the proportion equation
18,621,728.18 : 27,932,607.99 = 8,904,054.75 : x - Step 2: Convert to fraction form
18,621,728.18/27,932,607.99 = 8,904,054.75/x - Step 3: Cross multiply
18,621,728.18x = 27,932,607.99 × 8,904,054.75 - Step 4: Simplify right side
18,621,728.18x = 248,713,470,880,574 - Step 5: Solve for x
x = 248,713,470,880,574/18,621,728.18 - Step 6: Final answer
x = 13,356,089.64
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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.