Finding the Fourth Proportional to 157,447,621.80, 236,171,432.70 and 42,431,941.80
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Solution
The fourth proportional to 157,447,621.80, 236,171,432.70 and 42,431,941.80 is: 63,647,912.70
Step by Step Solution
- Step 1: Write the proportion equation
157,447,621.80 : 236,171,432.70 = 42,431,941.80 : x - Step 2: Convert to fraction form
157,447,621.80/236,171,432.70 = 42,431,941.80/x - Step 3: Cross multiply
157,447,621.80x = 236,171,432.70 × 42,431,941.80 - Step 4: Simplify right side
157,447,621.80x = 10,021,212,487,149,016 - Step 5: Solve for x
x = 10,021,212,487,149,016/157,447,621.80 - Step 6: Final answer
x = 63,647,912.70
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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.