Finding the Fourth Proportional to 133,059,620.20, 199,589,430.30 and 131,268,029.80
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Solution
The fourth proportional to 133,059,620.20, 199,589,430.30 and 131,268,029.80 is: 196,902,044.70
Step by Step Solution
- Step 1: Write the proportion equation
133,059,620.20 : 199,589,430.30 = 131,268,029.80 : x - Step 2: Convert to fraction form
133,059,620.20/199,589,430.30 = 131,268,029.80/x - Step 3: Cross multiply
133,059,620.20x = 199,589,430.30 × 131,268,029.80 - Step 4: Simplify right side
133,059,620.20x = 26,199,711,284,385,424 - Step 5: Solve for x
x = 26,199,711,284,385,424/133,059,620.20 - Step 6: Final answer
x = 196,902,044.70
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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.