Finding the Fourth Proportional to 1,858,540,249.74, 2,788,321,192.20 and 548,442,437.88
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Solution
The fourth proportional to 1,858,540,249.74, 2,788,321,192.20 and 548,442,437.88 is: 822,814,395.58
Step by Step Solution
- Step 1: Write the proportion equation
1,858,540,249.74 : 2,788,321,192.20 = 548,442,437.88 : x - Step 2: Convert to fraction form
1,858,540,249.74/2,788,321,192.20 = 548,442,437.88/x - Step 3: Cross multiply
1,858,540,249.74x = 2,788,321,192.20 × 548,442,437.88 - Step 4: Simplify right side
1,858,540,249.74x = 1,529,233,672,242,636,032 - Step 5: Solve for x
x = 1,529,233,672,242,636,032/1,858,540,249.74 - Step 6: Final answer
x = 822,814,395.58
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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.