Finding the Fourth Proportional to 68,952,662.64, 95,155,407.86 and 38,013,939.09
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Solution
The fourth proportional to 68,952,662.64, 95,155,407.86 and 38,013,939.09 is: 52,459,640.28
Step by Step Solution
- Step 1: Write the proportion equation
68,952,662.64 : 95,155,407.86 = 38,013,939.09 : x - Step 2: Convert to fraction form
68,952,662.64/95,155,407.86 = 38,013,939.09/x - Step 3: Cross multiply
68,952,662.64x = 95,155,407.86 × 38,013,939.09 - Step 4: Simplify right side
68,952,662.64x = 3,617,231,878,284,078 - Step 5: Solve for x
x = 3,617,231,878,284,078/68,952,662.64 - Step 6: Final answer
x = 52,459,640.28
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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.