Finding the Fourth Proportional to 625,478,228.45, 863,157,586.72 and 343,225,391.84
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Solution
The fourth proportional to 625,478,228.45, 863,157,586.72 and 343,225,391.84 is: 473,649,741.02
Step by Step Solution
- Step 1: Write the proportion equation
625,478,228.45 : 863,157,586.72 = 343,225,391.84 : x - Step 2: Convert to fraction form
625,478,228.45/863,157,586.72 = 343,225,391.84/x - Step 3: Cross multiply
625,478,228.45x = 863,157,586.72 × 343,225,391.84 - Step 4: Simplify right side
625,478,228.45x = 296,257,600,921,310,592 - Step 5: Solve for x
x = 296,257,600,921,310,592/625,478,228.45 - Step 6: Final answer
x = 473,649,741.02
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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.