Finding the Fourth Proportional to 363,430,937.10, 545,146,405.65 and 218,312,114.70
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Solution
The fourth proportional to 363,430,937.10, 545,146,405.65 and 218,312,114.70 is: 327,468,172.05
Step by Step Solution
- Step 1: Write the proportion equation
363,430,937.10 : 545,146,405.65 = 218,312,114.70 : x - Step 2: Convert to fraction form
363,430,937.10/545,146,405.65 = 218,312,114.70/x - Step 3: Cross multiply
363,430,937.10x = 545,146,405.65 × 218,312,114.70 - Step 4: Simplify right side
363,430,937.10x = 119,012,064,638,555,520 - Step 5: Solve for x
x = 119,012,064,638,555,520/363,430,937.10 - Step 6: Final answer
x = 327,468,172.05
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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.