Finding the Fourth Proportional to 1,347,226,800.20, 2,020,840,200.30 and 657,576,470.60
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Solution
The fourth proportional to 1,347,226,800.20, 2,020,840,200.30 and 657,576,470.60 is: 986,364,705.90
Step by Step Solution
- Step 1: Write the proportion equation
1,347,226,800.20 : 2,020,840,200.30 = 657,576,470.60 : x - Step 2: Convert to fraction form
1,347,226,800.20/2,020,840,200.30 = 657,576,470.60/x - Step 3: Cross multiply
1,347,226,800.20x = 2,020,840,200.30 × 657,576,470.60 - Step 4: Simplify right side
1,347,226,800.20x = 1,328,856,966,559,870,976 - Step 5: Solve for x
x = 1,328,856,966,559,870,976/1,347,226,800.20 - Step 6: Final answer
x = 986,364,705.90
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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.