Finding the Fourth Proportional to 7,646,649.40, 11,451,311.70 and 3,652,895.80
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Solution
The fourth proportional to 7,646,649.40, 11,451,311.70 and 3,652,895.80 is: 5,470,428.45
Step by Step Solution
- Step 1: Write the proportion equation
7,646,649.40 : 11,451,311.70 = 3,652,895.80 : x - Step 2: Convert to fraction form
7,646,649.40/11,451,311.70 = 3,652,895.80/x - Step 3: Cross multiply
7,646,649.40x = 11,451,311.70 × 3,652,895.80 - Step 4: Simplify right side
7,646,649.40x = 41,830,448,413,420.85 - Step 5: Solve for x
x = 41,830,448,413,420.85/7,646,649.40 - Step 6: Final answer
x = 5,470,428.45
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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.