Finding the Fourth Proportional to 1,379,331,649.80, 2,068,997,474.70 and 1,229,677,864.20
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Solution
The fourth proportional to 1,379,331,649.80, 2,068,997,474.70 and 1,229,677,864.20 is: 1,844,516,796.30
Step by Step Solution
- Step 1: Write the proportion equation
1,379,331,649.80 : 2,068,997,474.70 = 1,229,677,864.20 : x - Step 2: Convert to fraction form
1,379,331,649.80/2,068,997,474.70 = 1,229,677,864.20/x - Step 3: Cross multiply
1,379,331,649.80x = 2,068,997,474.70 × 1,229,677,864.20 - Step 4: Simplify right side
1,379,331,649.80x = 2,544,200,395,724,289,536 - Step 5: Solve for x
x = 2,544,200,395,724,289,536/1,379,331,649.80 - Step 6: Final answer
x = 1,844,516,796.30
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1.5x scale
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.