Finding the Fourth Proportional to 648,045,913.39, 894,207,157.14 and 393,594,858.49
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Solution
The fourth proportional to 648,045,913.39, 894,207,157.14 and 393,594,858.49 is: 543,102,475.00
Step by Step Solution
- Step 1: Write the proportion equation
648,045,913.39 : 894,207,157.14 = 393,594,858.49 : x - Step 2: Convert to fraction form
648,045,913.39/894,207,157.14 = 393,594,858.49/x - Step 3: Cross multiply
648,045,913.39x = 894,207,157.14 × 393,594,858.49 - Step 4: Simplify right side
648,045,913.39x = 351,955,339,474,503,936 - Step 5: Solve for x
x = 351,955,339,474,503,936/648,045,913.39 - Step 6: Final answer
x = 543,102,475.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.