Finding the Fourth Proportional to 257,770,029.67, 355,722,621.21 and 140,296,202.19
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Solution
The fourth proportional to 257,770,029.67, 355,722,621.21 and 140,296,202.19 is: 193,608,748.28
Step by Step Solution
- Step 1: Write the proportion equation
257,770,029.67 : 355,722,621.21 = 140,296,202.19 : x - Step 2: Convert to fraction form
257,770,029.67/355,722,621.21 = 140,296,202.19/x - Step 3: Cross multiply
257,770,029.67x = 355,722,621.21 × 140,296,202.19 - Step 4: Simplify right side
257,770,029.67x = 49,906,532,788,834,936 - Step 5: Solve for x
x = 49,906,532,788,834,936/257,770,029.67 - Step 6: Final answer
x = 193,608,748.28
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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.