Finding the Fourth Proportional to 431,136,704.70, 646,705,057.05 and 124,438,823.10
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Solution
The fourth proportional to 431,136,704.70, 646,705,057.05 and 124,438,823.10 is: 186,658,234.65
Step by Step Solution
- Step 1: Write the proportion equation
431,136,704.70 : 646,705,057.05 = 124,438,823.10 : x - Step 2: Convert to fraction form
431,136,704.70/646,705,057.05 = 124,438,823.10/x - Step 3: Cross multiply
431,136,704.70x = 646,705,057.05 × 124,438,823.10 - Step 4: Simplify right side
431,136,704.70x = 80,475,216,192,120,352 - Step 5: Solve for x
x = 80,475,216,192,120,352/431,136,704.70 - Step 6: Final answer
x = 186,658,234.65
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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.