Finding the Fourth Proportional to 117,877,416.80, 176,816,125.20 and 60,481,788.80
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Solution
The fourth proportional to 117,877,416.80, 176,816,125.20 and 60,481,788.80 is: 90,722,683.20
Step by Step Solution
- Step 1: Write the proportion equation
117,877,416.80 : 176,816,125.20 = 60,481,788.80 : x - Step 2: Convert to fraction form
117,877,416.80/176,816,125.20 = 60,481,788.80/x - Step 3: Cross multiply
117,877,416.80x = 176,816,125.20 × 60,481,788.80 - Step 4: Simplify right side
117,877,416.80x = 10,694,155,540,780,756 - Step 5: Solve for x
x = 10,694,155,540,780,756/117,877,416.80 - Step 6: Final answer
x = 90,722,683.20
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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.