Finding the Fourth Proportional to 79,498,936.40, 119,248,404.60 and 66,744,352.40
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Solution
The fourth proportional to 79,498,936.40, 119,248,404.60 and 66,744,352.40 is: 100,116,528.60
Step by Step Solution
- Step 1: Write the proportion equation
79,498,936.40 : 119,248,404.60 = 66,744,352.40 : x - Step 2: Convert to fraction form
79,498,936.40/119,248,404.60 = 66,744,352.40/x - Step 3: Cross multiply
79,498,936.40x = 119,248,404.60 × 66,744,352.40 - Step 4: Simplify right side
79,498,936.40x = 7,959,157,539,760,180 - Step 5: Solve for x
x = 7,959,157,539,760,180/79,498,936.40 - Step 6: Final answer
x = 100,116,528.60
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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.