Finding the Fourth Proportional to 31,584,028.84, 43,586,260.23 and 18,531,509.80
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Solution
The fourth proportional to 31,584,028.84, 43,586,260.23 and 18,531,509.80 is: 25,573,659.80
Step by Step Solution
- Step 1: Write the proportion equation
31,584,028.84 : 43,586,260.23 = 18,531,509.80 : x - Step 2: Convert to fraction form
31,584,028.84/43,586,260.23 = 18,531,509.80/x - Step 3: Cross multiply
31,584,028.84x = 43,586,260.23 × 18,531,509.80 - Step 4: Simplify right side
31,584,028.84x = 807,719,208,597,595.25 - Step 5: Solve for x
x = 807,719,208,597,595.25/31,584,028.84 - Step 6: Final answer
x = 25,573,659.80
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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.