Finding the Fourth Proportional to 79,236,740.20, 118,855,110.30 and 54,577,877.80
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Solution
The fourth proportional to 79,236,740.20, 118,855,110.30 and 54,577,877.80 is: 81,866,816.70
Step by Step Solution
- Step 1: Write the proportion equation
79,236,740.20 : 118,855,110.30 = 54,577,877.80 : x - Step 2: Convert to fraction form
79,236,740.20/118,855,110.30 = 54,577,877.80/x - Step 3: Cross multiply
79,236,740.20x = 118,855,110.30 × 54,577,877.80 - Step 4: Simplify right side
79,236,740.20x = 6,486,859,685,858,921 - Step 5: Solve for x
x = 6,486,859,685,858,921/79,236,740.20 - Step 6: Final answer
x = 81,866,816.70
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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.