Finding the Fourth Proportional to 79,261,283.80, 118,891,925.70 and 53,433,251.20
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Solution
The fourth proportional to 79,261,283.80, 118,891,925.70 and 53,433,251.20 is: 80,149,876.80
Step by Step Solution
- Step 1: Write the proportion equation
79,261,283.80 : 118,891,925.70 = 53,433,251.20 : x - Step 2: Convert to fraction form
79,261,283.80/118,891,925.70 = 53,433,251.20/x - Step 3: Cross multiply
79,261,283.80x = 118,891,925.70 × 53,433,251.20 - Step 4: Simplify right side
79,261,283.80x = 6,352,782,131,579,836 - Step 5: Solve for x
x = 6,352,782,131,579,836/79,261,283.80 - Step 6: Final answer
x = 80,149,876.80
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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.