Finding the Fourth Proportional to 198,291,208.60, 297,436,812.90 and 125,590,079.80
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Solution
The fourth proportional to 198,291,208.60, 297,436,812.90 and 125,590,079.80 is: 188,385,119.70
Step by Step Solution
- Step 1: Write the proportion equation
198,291,208.60 : 297,436,812.90 = 125,590,079.80 : x - Step 2: Convert to fraction form
198,291,208.60/297,436,812.90 = 125,590,079.80/x - Step 3: Cross multiply
198,291,208.60x = 297,436,812.90 × 125,590,079.80 - Step 4: Simplify right side
198,291,208.60x = 37,355,113,067,568,664 - Step 5: Solve for x
x = 37,355,113,067,568,664/198,291,208.60 - Step 6: Final answer
x = 188,385,119.70
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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.