Finding the Fourth Proportional to 31,665,809.84, 43,698,902.28 and 17,179,121.84
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Solution
The fourth proportional to 31,665,809.84, 43,698,902.28 and 17,179,121.84 is: 23,707,234.09
Step by Step Solution
- Step 1: Write the proportion equation
31,665,809.84 : 43,698,902.28 = 17,179,121.84 : x - Step 2: Convert to fraction form
31,665,809.84/43,698,902.28 = 17,179,121.84/x - Step 3: Cross multiply
31,665,809.84x = 43,698,902.28 × 17,179,121.84 - Step 4: Simplify right side
31,665,809.84x = 750,708,766,542,373.75 - Step 5: Solve for x
x = 750,708,766,542,373.75/31,665,809.84 - Step 6: Final answer
x = 23,707,234.09
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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.