Finding the Fourth Proportional to 73,778,935.40, 110,668,403.10 and 35,431,202.60
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Solution
The fourth proportional to 73,778,935.40, 110,668,403.10 and 35,431,202.60 is: 53,146,803.90
Step by Step Solution
- Step 1: Write the proportion equation
73,778,935.40 : 110,668,403.10 = 35,431,202.60 : x - Step 2: Convert to fraction form
73,778,935.40/110,668,403.10 = 35,431,202.60/x - Step 3: Cross multiply
73,778,935.40x = 110,668,403.10 × 35,431,202.60 - Step 4: Simplify right side
73,778,935.40x = 3,921,114,611,654,568 - Step 5: Solve for x
x = 3,921,114,611,654,568/73,778,935.40 - Step 6: Final answer
x = 53,146,803.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.