Finding the Fourth Proportional to 75,614,775.90, 113,450,157.45 and 72,815,415.90
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Solution
The fourth proportional to 75,614,775.90, 113,450,157.45 and 72,815,415.90 is: 109,250,081.09
Step by Step Solution
- Step 1: Write the proportion equation
75,614,775.90 : 113,450,157.45 = 72,815,415.90 : x - Step 2: Convert to fraction form
75,614,775.90/113,450,157.45 = 72,815,415.90/x - Step 3: Cross multiply
75,614,775.90x = 113,450,157.45 × 72,815,415.90 - Step 4: Simplify right side
75,614,775.90x = 8,260,920,398,642,234 - Step 5: Solve for x
x = 8,260,920,398,642,234/75,614,775.90 - Step 6: Final answer
x = 109,250,081.09
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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.