Finding the Fourth Proportional to 1,251,133,117.53, 1,726,563,706.23 and 694,305,771.45
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Solution
The fourth proportional to 1,251,133,117.53, 1,726,563,706.23 and 694,305,771.45 is: 958,141,966.84
Step by Step Solution
- Step 1: Write the proportion equation
1,251,133,117.53 : 1,726,563,706.23 = 694,305,771.45 : x - Step 2: Convert to fraction form
1,251,133,117.53/1,726,563,706.23 = 694,305,771.45/x - Step 3: Cross multiply
1,251,133,117.53x = 1,726,563,706.23 × 694,305,771.45 - Step 4: Simplify right side
1,251,133,117.53x = 1,198,763,146,011,591,424 - Step 5: Solve for x
x = 1,198,763,146,011,591,424/1,251,133,117.53 - Step 6: Final answer
x = 958,141,966.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.