Finding the Fourth Proportional to 79,825,781.80, 119,738,672.70 and 34,387,576.30
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Solution
The fourth proportional to 79,825,781.80, 119,738,672.70 and 34,387,576.30 is: 51,581,364.45
Step by Step Solution
- Step 1: Write the proportion equation
79,825,781.80 : 119,738,672.70 = 34,387,576.30 : x - Step 2: Convert to fraction form
79,825,781.80/119,738,672.70 = 34,387,576.30/x - Step 3: Cross multiply
79,825,781.80x = 119,738,672.70 × 34,387,576.30 - Step 4: Simplify right side
79,825,781.80x = 4,117,522,743,531,977 - Step 5: Solve for x
x = 4,117,522,743,531,977/79,825,781.80 - Step 6: Final answer
x = 51,581,364.45
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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.