Finding the Fourth Proportional to 5,377,614.98, 7,421,012.80 and 2,930,247.17
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Solution
The fourth proportional to 5,377,614.98, 7,421,012.80 and 2,930,247.17 is: 4,043,688.85
Step by Step Solution
- Step 1: Write the proportion equation
5,377,614.98 : 7,421,012.80 = 2,930,247.17 : x - Step 2: Convert to fraction form
5,377,614.98/7,421,012.80 = 2,930,247.17/x - Step 3: Cross multiply
5,377,614.98x = 7,421,012.80 × 2,930,247.17 - Step 4: Simplify right side
5,377,614.98x = 21,745,401,738,863.74 - Step 5: Solve for x
x = 21,745,401,738,863.74/5,377,614.98 - Step 6: Final answer
x = 4,043,688.85
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1.5x scale
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.