Finding the Fourth Proportional to 1,546,351,342.12, 2,133,965,199.54 and 850,990,318.12
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Solution
The fourth proportional to 1,546,351,342.12, 2,133,965,199.54 and 850,990,318.12 is: 1,174,366,830.20
Step by Step Solution
- Step 1: Write the proportion equation
1,546,351,342.12 : 2,133,965,199.54 = 850,990,318.12 : x - Step 2: Convert to fraction form
1,546,351,342.12/2,133,965,199.54 = 850,990,318.12/x - Step 3: Cross multiply
1,546,351,342.12x = 2,133,965,199.54 × 850,990,318.12 - Step 4: Simplify right side
1,546,351,342.12x = 1,815,983,724,013,553,920 - Step 5: Solve for x
x = 1,815,983,724,013,553,920/1,546,351,342.12 - Step 6: Final answer
x = 1,174,366,830.20
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1.5x scale
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.