Finding the Fourth Proportional to 75,451,645.80, 113,177,468.70 and 54,884,879.10
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Solution
The fourth proportional to 75,451,645.80, 113,177,468.70 and 54,884,879.10 is: 82,327,318.65
Step by Step Solution
- Step 1: Write the proportion equation
75,451,645.80 : 113,177,468.70 = 54,884,879.10 : x - Step 2: Convert to fraction form
75,451,645.80/113,177,468.70 = 54,884,879.10/x - Step 3: Cross multiply
75,451,645.80x = 113,177,468.70 × 54,884,879.10 - Step 4: Simplify right side
75,451,645.80x = 6,211,731,686,443,535 - Step 5: Solve for x
x = 6,211,731,686,443,535/75,451,645.80 - Step 6: Final answer
x = 82,327,318.65
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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.