Finding the Fourth Proportional to 1,941,555,305.80, 2,912,332,958.70 and 1,123,246,390.60
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Solution
The fourth proportional to 1,941,555,305.80, 2,912,332,958.70 and 1,123,246,390.60 is: 1,684,869,585.90
Step by Step Solution
- Step 1: Write the proportion equation
1,941,555,305.80 : 2,912,332,958.70 = 1,123,246,390.60 : x - Step 2: Convert to fraction form
1,941,555,305.80/2,912,332,958.70 = 1,123,246,390.60/x - Step 3: Cross multiply
1,941,555,305.80x = 2,912,332,958.70 × 1,123,246,390.60 - Step 4: Simplify right side
1,941,555,305.80x = 3,271,267,484,085,193,216 - Step 5: Solve for x
x = 3,271,267,484,085,193,216/1,941,555,305.80 - Step 6: Final answer
x = 1,684,869,585.90
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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.