Finding the Fourth Proportional to 221,447,286.45, 305,591,332.37 and 122,325,900.57
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Solution
The fourth proportional to 221,447,286.45, 305,591,332.37 and 122,325,900.57 is: 168,806,471.00
Step by Step Solution
- Step 1: Write the proportion equation
221,447,286.45 : 305,591,332.37 = 122,325,900.57 : x - Step 2: Convert to fraction form
221,447,286.45/305,591,332.37 = 122,325,900.57/x - Step 3: Cross multiply
221,447,286.45x = 305,591,332.37 × 122,325,900.57 - Step 4: Simplify right side
221,447,286.45x = 37,381,734,937,934,808 - Step 5: Solve for x
x = 37,381,734,937,934,808/221,447,286.45 - Step 6: Final answer
x = 168,806,471.00
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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.