Finding the Fourth Proportional to 4,678,786.40, 6,453,169.98 and 4,026,497.27
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Solution
The fourth proportional to 4,678,786.40, 6,453,169.98 and 4,026,497.27 is: 5,553,506.63
Step by Step Solution
- Step 1: Write the proportion equation
4,678,786.40 : 6,453,169.98 = 4,026,497.27 : x - Step 2: Convert to fraction form
4,678,786.40/6,453,169.98 = 4,026,497.27/x - Step 3: Cross multiply
4,678,786.40x = 6,453,169.98 × 4,026,497.27 - Step 4: Simplify right side
4,678,786.40x = 25,983,671,307,315.96 - Step 5: Solve for x
x = 25,983,671,307,315.96/4,678,786.40 - Step 6: Final answer
x = 5,553,506.63
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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.