Finding the Fourth Proportional to 987,968,165.40, 1,481,793,224.46 and 288,296,025.84
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Solution
The fourth proportional to 987,968,165.40, 1,481,793,224.46 and 288,296,025.84 is: 432,397,634.55
Step by Step Solution
- Step 1: Write the proportion equation
987,968,165.40 : 1,481,793,224.46 = 288,296,025.84 : x - Step 2: Convert to fraction form
987,968,165.40/1,481,793,224.46 = 288,296,025.84/x - Step 3: Cross multiply
987,968,165.40x = 1,481,793,224.46 × 288,296,025.84 - Step 4: Simplify right side
987,968,165.40x = 427,195,097,728,457,024 - Step 5: Solve for x
x = 427,195,097,728,457,024/987,968,165.40 - Step 6: Final answer
x = 432,397,634.55
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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.