Finding the Fourth Proportional to 1,252,278,664.08, 1,728,303,988.32 and 757,244,915.52
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Solution
The fourth proportional to 1,252,278,664.08, 1,728,303,988.32 and 757,244,915.52 is: 1,045,094,390.86
Step by Step Solution
- Step 1: Write the proportion equation
1,252,278,664.08 : 1,728,303,988.32 = 757,244,915.52 : x - Step 2: Convert to fraction form
1,252,278,664.08/1,728,303,988.32 = 757,244,915.52/x - Step 3: Cross multiply
1,252,278,664.08x = 1,728,303,988.32 × 757,244,915.52 - Step 4: Simplify right side
1,252,278,664.08x = 1,308,749,407,628,257,280 - Step 5: Solve for x
x = 1,308,749,407,628,257,280/1,252,278,664.08 - Step 6: Final answer
x = 1,045,094,390.86
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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.