Finding the Fourth Proportional to 272,153,695.20, 408,230,542.80 and 169,975,305.60
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Solution
The fourth proportional to 272,153,695.20, 408,230,542.80 and 169,975,305.60 is: 254,962,958.40
Step by Step Solution
- Step 1: Write the proportion equation
272,153,695.20 : 408,230,542.80 = 169,975,305.60 : x - Step 2: Convert to fraction form
272,153,695.20/408,230,542.80 = 169,975,305.60/x - Step 3: Cross multiply
272,153,695.20x = 408,230,542.80 × 169,975,305.60 - Step 4: Simplify right side
272,153,695.20x = 69,389,111,267,683,880 - Step 5: Solve for x
x = 69,389,111,267,683,880/272,153,695.20 - Step 6: Final answer
x = 254,962,958.40
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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.