Finding the Fourth Proportional to 3,130,491.60, 4,318,071.12 and 2,149,957.44
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Solution
The fourth proportional to 3,130,491.60, 4,318,071.12 and 2,149,957.44 is: 2,965,562.70
Step by Step Solution
- Step 1: Write the proportion equation
3,130,491.60 : 4,318,071.12 = 2,149,957.44 : x - Step 2: Convert to fraction form
3,130,491.60/4,318,071.12 = 2,149,957.44/x - Step 3: Cross multiply
3,130,491.60x = 4,318,071.12 × 2,149,957.44 - Step 4: Simplify right side
3,130,491.60x = 9,283,669,130,893.13 - Step 5: Solve for x
x = 9,283,669,130,893.13/3,130,491.60 - Step 6: Final answer
x = 2,965,562.70
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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.