Finding the Fourth Proportional to 79,131,618.80, 118,697,428.20 and 71,195,433.20
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Solution
The fourth proportional to 79,131,618.80, 118,697,428.20 and 71,195,433.20 is: 106,793,149.80
Step by Step Solution
- Step 1: Write the proportion equation
79,131,618.80 : 118,697,428.20 = 71,195,433.20 : x - Step 2: Convert to fraction form
79,131,618.80/118,697,428.20 = 71,195,433.20/x - Step 3: Cross multiply
79,131,618.80x = 118,697,428.20 × 71,195,433.20 - Step 4: Simplify right side
79,131,618.80x = 8,450,714,820,424,897 - Step 5: Solve for x
x = 8,450,714,820,424,897/79,131,618.80 - Step 6: Final answer
x = 106,793,149.80
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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.