Finding the Fourth Proportional to 13,860,502.36, 20,689,233.80 and 12,224,276.44
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Solution
The fourth proportional to 13,860,502.36, 20,689,233.80 and 12,224,276.44 is: 18,246,879.28
Step by Step Solution
- Step 1: Write the proportion equation
13,860,502.36 : 20,689,233.80 = 12,224,276.44 : x - Step 2: Convert to fraction form
13,860,502.36/20,689,233.80 = 12,224,276.44/x - Step 3: Cross multiply
13,860,502.36x = 20,689,233.80 × 12,224,276.44 - Step 4: Simplify right side
13,860,502.36x = 252,910,913,302,991.66 - Step 5: Solve for x
x = 252,910,913,302,991.66/13,860,502.36 - Step 6: Final answer
x = 18,246,879.28
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.