Finding the Fourth Proportional to 98,697,860.87, 136,212,187.64 and 54,644,860.44
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Solution
The fourth proportional to 98,697,860.87, 136,212,187.64 and 54,644,860.44 is: 75,414,967.64
Step by Step Solution
- Step 1: Write the proportion equation
98,697,860.87 : 136,212,187.64 = 54,644,860.44 : x - Step 2: Convert to fraction form
98,697,860.87/136,212,187.64 = 54,644,860.44/x - Step 3: Cross multiply
98,697,860.87x = 136,212,187.64 × 54,644,860.44 - Step 4: Simplify right side
98,697,860.87x = 7,443,295,983,541,668 - Step 5: Solve for x
x = 7,443,295,983,541,668/98,697,860.87 - Step 6: Final answer
x = 75,414,967.64
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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.