Finding the Fourth Proportional to 312,623,631.36, 468,343,546.38 and 208,679,414.24
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Solution
The fourth proportional to 312,623,631.36, 468,343,546.38 and 208,679,414.24 is: 312,624,021.72
Step by Step Solution
- Step 1: Write the proportion equation
312,623,631.36 : 468,343,546.38 = 208,679,414.24 : x - Step 2: Convert to fraction form
312,623,631.36/468,343,546.38 = 208,679,414.24/x - Step 3: Cross multiply
312,623,631.36x = 468,343,546.38 × 208,679,414.24 - Step 4: Simplify right side
312,623,631.36x = 97,733,656,921,662,672 - Step 5: Solve for x
x = 97,733,656,921,662,672/312,623,631.36 - Step 6: Final answer
x = 312,624,021.72
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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.