Finding the Fourth Proportional to 5,174,980.12, 7,141,305.09 and 2,970,205.84
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Solution
The fourth proportional to 5,174,980.12, 7,141,305.09 and 2,970,205.84 is: 4,098,787.94
Step by Step Solution
- Step 1: Write the proportion equation
5,174,980.12 : 7,141,305.09 = 2,970,205.84 : x - Step 2: Convert to fraction form
5,174,980.12/7,141,305.09 = 2,970,205.84/x - Step 3: Cross multiply
5,174,980.12x = 7,141,305.09 × 2,970,205.84 - Step 4: Simplify right side
5,174,980.12x = 21,211,146,083,539.72 - Step 5: Solve for x
x = 21,211,146,083,539.72/5,174,980.12 - Step 6: Final answer
x = 4,098,787.94
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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.