Finding the Fourth Proportional to 4,313,809,315.20, 6,470,713,972.80 and 2,221,738,674.60
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Solution
The fourth proportional to 4,313,809,315.20, 6,470,713,972.80 and 2,221,738,674.60 is: 3,332,608,011.90
Step by Step Solution
- Step 1: Write the proportion equation
4,313,809,315.20 : 6,470,713,972.80 = 2,221,738,674.60 : x - Step 2: Convert to fraction form
4,313,809,315.20/6,470,713,972.80 = 2,221,738,674.60/x - Step 3: Cross multiply
4,313,809,315.20x = 6,470,713,972.80 × 2,221,738,674.60 - Step 4: Simplify right side
4,313,809,315.20x = 14,376,235,485,644,371,968 - Step 5: Solve for x
x = 14,376,235,485,644,371,968/4,313,809,315.20 - Step 6: Final answer
x = 3,332,608,011.90
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Double scale
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1.5x scale
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.