Finding the Fourth Proportional to 30,738,851.76, 42,419,683.08 and 16,800,430.08
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Solution
The fourth proportional to 30,738,851.76, 42,419,683.08 and 16,800,430.08 is: 23,184,630.49
Step by Step Solution
- Step 1: Write the proportion equation
30,738,851.76 : 42,419,683.08 = 16,800,430.08 : x - Step 2: Convert to fraction form
30,738,851.76/42,419,683.08 = 16,800,430.08/x - Step 3: Cross multiply
30,738,851.76x = 42,419,683.08 × 16,800,430.08 - Step 4: Simplify right side
30,738,851.76x = 712,668,919,601,299 - Step 5: Solve for x
x = 712,668,919,601,299/30,738,851.76 - Step 6: Final answer
x = 23,184,630.49
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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.