Finding the Fourth Proportional to 3,878,569.44, 5,352,583.68 and 2,159,580.96
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Solution
The fourth proportional to 3,878,569.44, 5,352,583.68 and 2,159,580.96 is: 2,980,309.62
Step by Step Solution
- Step 1: Write the proportion equation
3,878,569.44 : 5,352,583.68 = 2,159,580.96 : x - Step 2: Convert to fraction form
3,878,569.44/5,352,583.68 = 2,159,580.96/x - Step 3: Cross multiply
3,878,569.44x = 5,352,583.68 × 2,159,580.96 - Step 4: Simplify right side
3,878,569.44x = 11,559,337,802,134.73 - Step 5: Solve for x
x = 11,559,337,802,134.73/3,878,569.44 - Step 6: Final answer
x = 2,980,309.62
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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.