Finding the Fourth Proportional to 1,330,400,198.48, 1,835,964,169.74 and 735,724,694.66
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Solution
The fourth proportional to 1,330,400,198.48, 1,835,964,169.74 and 735,724,694.66 is: 1,015,306,657.15
Step by Step Solution
- Step 1: Write the proportion equation
1,330,400,198.48 : 1,835,964,169.74 = 735,724,694.66 : x - Step 2: Convert to fraction form
1,330,400,198.48/1,835,964,169.74 = 735,724,694.66/x - Step 3: Cross multiply
1,330,400,198.48x = 1,835,964,169.74 × 735,724,694.66 - Step 4: Simplify right side
1,330,400,198.48x = 1,350,764,178,179,482,112 - Step 5: Solve for x
x = 1,350,764,178,179,482,112/1,330,400,198.48 - Step 6: Final answer
x = 1,015,306,657.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.