Finding the Fourth Proportional to 75,788,431.98, 113,639,131.80 and 29,676,311.64
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Solution
The fourth proportional to 75,788,431.98, 113,639,131.80 and 29,676,311.64 is: 44,497,427.93
Step by Step Solution
- Step 1: Write the proportion equation
75,788,431.98 : 113,639,131.80 = 29,676,311.64 : x - Step 2: Convert to fraction form
75,788,431.98/113,639,131.80 = 29,676,311.64/x - Step 3: Cross multiply
75,788,431.98x = 113,639,131.80 × 29,676,311.64 - Step 4: Simplify right side
75,788,431.98x = 3,372,390,289,795,834 - Step 5: Solve for x
x = 3,372,390,289,795,834/75,788,431.98 - Step 6: Final answer
x = 44,497,427.93
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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.