Finding the Fourth Proportional to 18,451,848.30, 27,677,772.45 and 12,081,749.10
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Solution
The fourth proportional to 18,451,848.30, 27,677,772.45 and 12,081,749.10 is: 18,122,623.65
Step by Step Solution
- Step 1: Write the proportion equation
18,451,848.30 : 27,677,772.45 = 12,081,749.10 : x - Step 2: Convert to fraction form
18,451,848.30/27,677,772.45 = 12,081,749.10/x - Step 3: Cross multiply
18,451,848.30x = 27,677,772.45 × 12,081,749.10 - Step 4: Simplify right side
18,451,848.30x = 334,395,902,387,792.25 - Step 5: Solve for x
x = 334,395,902,387,792.25/18,451,848.30 - Step 6: Final answer
x = 18,122,623.65
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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.