Finding the Fourth Proportional to 15,769,207.72, 21,761,465.66 and 8,799,812.14
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Solution
The fourth proportional to 15,769,207.72, 21,761,465.66 and 8,799,812.14 is: 12,143,717.88
Step by Step Solution
- Step 1: Write the proportion equation
15,769,207.72 : 21,761,465.66 = 8,799,812.14 : x - Step 2: Convert to fraction form
15,769,207.72/21,761,465.66 = 8,799,812.14/x - Step 3: Cross multiply
15,769,207.72x = 21,761,465.66 × 8,799,812.14 - Step 4: Simplify right side
15,769,207.72x = 191,496,809,699,061.12 - Step 5: Solve for x
x = 191,496,809,699,061.12/15,769,207.72 - Step 6: Final answer
x = 12,143,717.88
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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.