Finding the Fourth Proportional to 2,892,875,467.68, 3,993,017,761.44 and 1,889,446,435.20
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Solution
The fourth proportional to 2,892,875,467.68, 3,993,017,761.44 and 1,889,446,435.20 is: 2,607,990,996.96
Step by Step Solution
- Step 1: Write the proportion equation
2,892,875,467.68 : 3,993,017,761.44 = 1,889,446,435.20 : x - Step 2: Convert to fraction form
2,892,875,467.68/3,993,017,761.44 = 1,889,446,435.20/x - Step 3: Cross multiply
2,892,875,467.68x = 3,993,017,761.44 × 1,889,446,435.20 - Step 4: Simplify right side
2,892,875,467.68x = 7,544,593,175,043,092,480 - Step 5: Solve for x
x = 7,544,593,175,043,092,480/2,892,875,467.68 - Step 6: Final answer
x = 2,607,990,996.96
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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.