Finding the Fourth Proportional to 21,413,459.65, 29,550,612.09 and 11,623,910.62
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Solution
The fourth proportional to 21,413,459.65, 29,550,612.09 and 11,623,910.62 is: 16,041,017.16
Step by Step Solution
- Step 1: Write the proportion equation
21,413,459.65 : 29,550,612.09 = 11,623,910.62 : x - Step 2: Convert to fraction form
21,413,459.65/29,550,612.09 = 11,623,910.62/x - Step 3: Cross multiply
21,413,459.65x = 29,550,612.09 × 11,623,910.62 - Step 4: Simplify right side
21,413,459.65x = 343,493,673,700,451.38 - Step 5: Solve for x
x = 343,493,673,700,451.38/21,413,459.65 - Step 6: Final answer
x = 16,041,017.16
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.