Finding the Fourth Proportional to 272,153,485.80, 408,230,228.70 and 260,816,077.80
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Solution
The fourth proportional to 272,153,485.80, 408,230,228.70 and 260,816,077.80 is: 391,224,116.70
Step by Step Solution
- Step 1: Write the proportion equation
272,153,485.80 : 408,230,228.70 = 260,816,077.80 : x - Step 2: Convert to fraction form
272,153,485.80/408,230,228.70 = 260,816,077.80/x - Step 3: Cross multiply
272,153,485.80x = 408,230,228.70 × 260,816,077.80 - Step 4: Simplify right side
272,153,485.80x = 106,473,007,088,930,992 - Step 5: Solve for x
x = 106,473,007,088,930,992/272,153,485.80 - Step 6: Final answer
x = 391,224,116.70
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1.5x scale
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.