Finding the Fourth Proportional to 220,516,391.90, 304,303,298.46 and 120,042,740.09
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Solution
The fourth proportional to 220,516,391.90, 304,303,298.46 and 120,042,740.09 is: 165,653,906.50
Step by Step Solution
- Step 1: Write the proportion equation
220,516,391.90 : 304,303,298.46 = 120,042,740.09 : x - Step 2: Convert to fraction form
220,516,391.90/304,303,298.46 = 120,042,740.09/x - Step 3: Cross multiply
220,516,391.90x = 304,303,298.46 × 120,042,740.09 - Step 4: Simplify right side
220,516,391.90x = 36,529,401,764,041,960 - Step 5: Solve for x
x = 36,529,401,764,041,960/220,516,391.90 - Step 6: Final answer
x = 165,653,906.50
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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.