Finding the Fourth Proportional to 27,621,564.18, 38,118,678.77 and 15,063,304.03
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Solution
The fourth proportional to 27,621,564.18, 38,118,678.77 and 15,063,304.03 is: 20,787,861.39
Step by Step Solution
- Step 1: Write the proportion equation
27,621,564.18 : 38,118,678.77 = 15,063,304.03 : x - Step 2: Convert to fraction form
27,621,564.18/38,118,678.77 = 15,063,304.03/x - Step 3: Cross multiply
27,621,564.18x = 38,118,678.77 × 15,063,304.03 - Step 4: Simplify right side
27,621,564.18x = 574,193,247,534,416.50 - Step 5: Solve for x
x = 574,193,247,534,416.50/27,621,564.18 - Step 6: Final answer
x = 20,787,861.39
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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.