Finding the Fourth Proportional to 2,116,440,450.45, 3,174,784,235.64 and 642,628,340.19
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Solution
The fourth proportional to 2,116,440,450.45, 3,174,784,235.64 and 642,628,340.19 is: 963,980,027.59
Step by Step Solution
- Step 1: Write the proportion equation
2,116,440,450.45 : 3,174,784,235.64 = 642,628,340.19 : x - Step 2: Convert to fraction form
2,116,440,450.45/3,174,784,235.64 = 642,628,340.19/x - Step 3: Cross multiply
2,116,440,450.45x = 3,174,784,235.64 × 642,628,340.19 - Step 4: Simplify right side
2,116,440,450.45x = 2,040,206,323,810,711,040 - Step 5: Solve for x
x = 2,040,206,323,810,711,040/2,116,440,450.45 - Step 6: Final answer
x = 963,980,027.59
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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.