Finding the Fourth Proportional to 5,430,401.80, 8,143,529.10 and 1,642,625.80
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Solution
The fourth proportional to 5,430,401.80, 8,143,529.10 and 1,642,625.80 is: 2,463,311.46
Step by Step Solution
- Step 1: Write the proportion equation
5,430,401.80 : 8,143,529.10 = 1,642,625.80 : x - Step 2: Convert to fraction form
5,430,401.80/8,143,529.10 = 1,642,625.80/x - Step 3: Cross multiply
5,430,401.80x = 8,143,529.10 × 1,642,625.80 - Step 4: Simplify right side
5,430,401.80x = 13,376,771,002,710.78 - Step 5: Solve for x
x = 13,376,771,002,710.78/5,430,401.80 - Step 6: Final answer
x = 2,463,311.46
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1.5x scale
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.