Finding the Fourth Proportional to 218,330,292.20, 326,599,643.10 and 196,831,207.40
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Solution
The fourth proportional to 218,330,292.20, 326,599,643.10 and 196,831,207.40 is: 294,439,225.27
Step by Step Solution
- Step 1: Write the proportion equation
218,330,292.20 : 326,599,643.10 = 196,831,207.40 : x - Step 2: Convert to fraction form
218,330,292.20/326,599,643.10 = 196,831,207.40/x - Step 3: Cross multiply
218,330,292.20x = 326,599,643.10 × 196,831,207.40 - Step 4: Simplify right side
218,330,292.20x = 64,285,002,087,782,088 - Step 5: Solve for x
x = 64,285,002,087,782,088/218,330,292.20 - Step 6: Final answer
x = 294,439,225.27
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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.