Finding the Fourth Proportional to 4,678,542.90, 7,017,814.35 and 2,663,003.70
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Solution
The fourth proportional to 4,678,542.90, 7,017,814.35 and 2,663,003.70 is: 3,994,505.55
Step by Step Solution
- Step 1: Write the proportion equation
4,678,542.90 : 7,017,814.35 = 2,663,003.70 : x - Step 2: Convert to fraction form
4,678,542.90/7,017,814.35 = 2,663,003.70/x - Step 3: Cross multiply
4,678,542.90x = 7,017,814.35 × 2,663,003.70 - Step 4: Simplify right side
4,678,542.90x = 18,688,465,579,963.09 - Step 5: Solve for x
x = 18,688,465,579,963.09/4,678,542.90 - Step 6: Final answer
x = 3,994,505.55
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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.