Finding the Fourth Proportional to 28,769,251.32, 39,701,593.62 and 15,716,728.26
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Solution
The fourth proportional to 28,769,251.32, 39,701,593.62 and 15,716,728.26 is: 21,689,099.64
Step by Step Solution
- Step 1: Write the proportion equation
28,769,251.32 : 39,701,593.62 = 15,716,728.26 : x - Step 2: Convert to fraction form
28,769,251.32/39,701,593.62 = 15,716,728.26/x - Step 3: Cross multiply
28,769,251.32x = 39,701,593.62 × 15,716,728.26 - Step 4: Simplify right side
28,769,251.32x = 623,979,158,414,489.62 - Step 5: Solve for x
x = 623,979,158,414,489.62/28,769,251.32 - Step 6: Final answer
x = 21,689,099.64
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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.