Finding the Fourth Proportional to 19,936,642.92, 29,904,964.37 and 4,790,574.42
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Solution
The fourth proportional to 19,936,642.92, 29,904,964.37 and 4,790,574.42 is: 7,185,861.63
Step by Step Solution
- Step 1: Write the proportion equation
19,936,642.92 : 29,904,964.37 = 4,790,574.42 : x - Step 2: Convert to fraction form
19,936,642.92/29,904,964.37 = 4,790,574.42/x - Step 3: Cross multiply
19,936,642.92x = 29,904,964.37 × 4,790,574.42 - Step 4: Simplify right side
19,936,642.92x = 143,261,957,341,933.41 - Step 5: Solve for x
x = 143,261,957,341,933.41/19,936,642.92 - Step 6: Final answer
x = 7,185,861.63
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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.