Finding the Fourth Proportional to 79,243,331.40, 118,753,022.70 and 48,860,944.20
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Solution
The fourth proportional to 79,243,331.40, 118,753,022.70 and 48,860,944.20 is: 73,222,373.58
Step by Step Solution
- Step 1: Write the proportion equation
79,243,331.40 : 118,753,022.70 = 48,860,944.20 : x - Step 2: Convert to fraction form
79,243,331.40/118,753,022.70 = 48,860,944.20/x - Step 3: Cross multiply
79,243,331.40x = 118,753,022.70 × 48,860,944.20 - Step 4: Simplify right side
79,243,331.40x = 5,802,384,815,726,034 - Step 5: Solve for x
x = 5,802,384,815,726,034/79,243,331.40 - Step 6: Final answer
x = 73,222,373.58
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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.