Finding the Fourth Proportional to 27,985,523.49, 38,619,497.45 and 15,595,343.98
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Solution
The fourth proportional to 27,985,523.49, 38,619,497.45 and 15,595,343.98 is: 21,521,282.15
Step by Step Solution
- Step 1: Write the proportion equation
27,985,523.49 : 38,619,497.45 = 15,595,343.98 : x - Step 2: Convert to fraction form
27,985,523.49/38,619,497.45 = 15,595,343.98/x - Step 3: Cross multiply
27,985,523.49x = 38,619,497.45 × 15,595,343.98 - Step 4: Simplify right side
27,985,523.49x = 602,284,347,009,922.50 - Step 5: Solve for x
x = 602,284,347,009,922.50/27,985,523.49 - Step 6: Final answer
x = 21,521,282.15
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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.