Finding the Fourth Proportional to 3,979,382.37, 5,487,646.44 and 2,526,555.53
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Solution
The fourth proportional to 3,979,382.37, 5,487,646.44 and 2,526,555.53 is: 3,484,169.69
Step by Step Solution
- Step 1: Write the proportion equation
3,979,382.37 : 5,487,646.44 = 2,526,555.53 : x - Step 2: Convert to fraction form
3,979,382.37/5,487,646.44 = 2,526,555.53/x - Step 3: Cross multiply
3,979,382.37x = 5,487,646.44 × 2,526,555.53 - Step 4: Simplify right side
3,979,382.37x = 13,864,843,432,228.58 - Step 5: Solve for x
x = 13,864,843,432,228.58/3,979,382.37 - Step 6: Final answer
x = 3,484,169.69
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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.