Finding the Fourth Proportional to 384,912,287.20, 577,368,430.80 and 373,574,879.20
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Solution
The fourth proportional to 384,912,287.20, 577,368,430.80 and 373,574,879.20 is: 560,362,318.80
Step by Step Solution
- Step 1: Write the proportion equation
384,912,287.20 : 577,368,430.80 = 373,574,879.20 : x - Step 2: Convert to fraction form
384,912,287.20/577,368,430.80 = 373,574,879.20/x - Step 3: Cross multiply
384,912,287.20x = 577,368,430.80 × 373,574,879.20 - Step 4: Simplify right side
384,912,287.20x = 215,690,341,790,003,520 - Step 5: Solve for x
x = 215,690,341,790,003,520/384,912,287.20 - Step 6: Final answer
x = 560,362,318.80
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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.