Finding the Fourth Proportional to 5,389,360.40, 8,072,230.80 and 4,790,997.20
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Solution
The fourth proportional to 5,389,360.40, 8,072,230.80 and 4,790,997.20 is: 7,175,997.20
Step by Step Solution
- Step 1: Write the proportion equation
5,389,360.40 : 8,072,230.80 = 4,790,997.20 : x - Step 2: Convert to fraction form
5,389,360.40/8,072,230.80 = 4,790,997.20/x - Step 3: Cross multiply
5,389,360.40x = 8,072,230.80 × 4,790,997.20 - Step 4: Simplify right side
5,389,360.40x = 38,674,035,160,553.76 - Step 5: Solve for x
x = 38,674,035,160,553.76/5,389,360.40 - Step 6: Final answer
x = 7,175,997.20
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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.