Finding the Fourth Proportional to 252,354,651.30, 378,567,406.35 and 79,813,473.30
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Solution
The fourth proportional to 252,354,651.30, 378,567,406.35 and 79,813,473.30 is: 119,731,415.38
Step by Step Solution
- Step 1: Write the proportion equation
252,354,651.30 : 378,567,406.35 = 79,813,473.30 : x - Step 2: Convert to fraction form
252,354,651.30/378,567,406.35 = 79,813,473.30/x - Step 3: Cross multiply
252,354,651.30x = 378,567,406.35 × 79,813,473.30 - Step 4: Simplify right side
252,354,651.30x = 30,214,779,578,965,976 - Step 5: Solve for x
x = 30,214,779,578,965,976/252,354,651.30 - Step 6: Final answer
x = 119,731,415.38
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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.