Finding the Fourth Proportional to 2,586,826,518.40, 3,880,239,777.60 and 746,639,228.80
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Solution
The fourth proportional to 2,586,826,518.40, 3,880,239,777.60 and 746,639,228.80 is: 1,119,958,843.20
Step by Step Solution
- Step 1: Write the proportion equation
2,586,826,518.40 : 3,880,239,777.60 = 746,639,228.80 : x - Step 2: Convert to fraction form
2,586,826,518.40/3,880,239,777.60 = 746,639,228.80/x - Step 3: Cross multiply
2,586,826,518.40x = 3,880,239,777.60 × 746,639,228.80 - Step 4: Simplify right side
2,586,826,518.40x = 2,897,139,235,106,347,008 - Step 5: Solve for x
x = 2,897,139,235,106,347,008/2,586,826,518.40 - Step 6: Final answer
x = 1,119,958,843.20
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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.