Finding the Fourth Proportional to 31,874,943.44, 43,989,497.16 and 18,125,186
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Solution
The fourth proportional to 31,874,943.44, 43,989,497.16 and 18,125,186 is: 25,013,936.72
Step by Step Solution
- Step 1: Write the proportion equation
31,874,943.44 : 43,989,497.16 = 18,125,186 : x - Step 2: Convert to fraction form
31,874,943.44/43,989,497.16 = 18,125,186/x - Step 3: Cross multiply
31,874,943.44x = 43,989,497.16 × 18,125,186 - Step 4: Simplify right side
31,874,943.44x = 797,317,818,071,471.75 - Step 5: Solve for x
x = 797,317,818,071,471.75/31,874,943.44 - Step 6: Final answer
x = 25,013,936.72
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1.5x scale
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.