Finding the Fourth Proportional to 2,989,895.40, 4,124,620.48 and 1,956,948.44
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Solution
The fourth proportional to 2,989,895.40, 4,124,620.48 and 1,956,948.44 is: 2,699,649.50
Step by Step Solution
- Step 1: Write the proportion equation
2,989,895.40 : 4,124,620.48 = 1,956,948.44 : x - Step 2: Convert to fraction form
2,989,895.40/4,124,620.48 = 1,956,948.44/x - Step 3: Cross multiply
2,989,895.40x = 4,124,620.48 × 1,956,948.44 - Step 4: Simplify right side
2,989,895.40x = 8,071,669,613,928.05 - Step 5: Solve for x
x = 8,071,669,613,928.05/2,989,895.40 - Step 6: Final answer
x = 2,699,649.50
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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.