Finding the Fourth Proportional to 2,989,663.70, 4,125,734.80 and 1,631,536.70
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Solution
The fourth proportional to 2,989,663.70, 4,125,734.80 and 1,631,536.70 is: 2,251,520.04
Step by Step Solution
- Step 1: Write the proportion equation
2,989,663.70 : 4,125,734.80 = 1,631,536.70 : x - Step 2: Convert to fraction form
2,989,663.70/4,125,734.80 = 1,631,536.70/x - Step 3: Cross multiply
2,989,663.70x = 4,125,734.80 × 1,631,536.70 - Step 4: Simplify right side
2,989,663.70x = 6,731,287,713,920.22 - Step 5: Solve for x
x = 6,731,287,713,920.22/2,989,663.70 - Step 6: Final answer
x = 2,251,520.04
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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.