Finding the Fourth Proportional to 2,919,214.30, 4,378,821.45 and 2,116,731.10
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Solution
The fourth proportional to 2,919,214.30, 4,378,821.45 and 2,116,731.10 is: 3,175,096.65
Step by Step Solution
- Step 1: Write the proportion equation
2,919,214.30 : 4,378,821.45 = 2,116,731.10 : x - Step 2: Convert to fraction form
2,919,214.30/4,378,821.45 = 2,116,731.10/x - Step 3: Cross multiply
2,919,214.30x = 4,378,821.45 × 2,116,731.10 - Step 4: Simplify right side
2,919,214.30x = 9,268,787,544,562.10 - Step 5: Solve for x
x = 9,268,787,544,562.10/2,919,214.30 - Step 6: Final answer
x = 3,175,096.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.