Finding the Fourth Proportional to 5,168,995.68, 7,133,214.24 and 2,877,107.28
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Solution
The fourth proportional to 5,168,995.68, 7,133,214.24 and 2,877,107.28 is: 3,970,408.16
Step by Step Solution
- Step 1: Write the proportion equation
5,168,995.68 : 7,133,214.24 = 2,877,107.28 : x - Step 2: Convert to fraction form
5,168,995.68/7,133,214.24 = 2,877,107.28/x - Step 3: Cross multiply
5,168,995.68x = 7,133,214.24 × 2,877,107.28 - Step 4: Simplify right side
5,168,995.68x = 20,523,022,619,703.67 - Step 5: Solve for x
x = 20,523,022,619,703.67/5,168,995.68 - Step 6: Final answer
x = 3,970,408.16
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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.