Finding the Fourth Proportional to 293,416,287.20, 440,124,430.80 and 207,322,845.20
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Solution
The fourth proportional to 293,416,287.20, 440,124,430.80 and 207,322,845.20 is: 310,984,267.80
Step by Step Solution
- Step 1: Write the proportion equation
293,416,287.20 : 440,124,430.80 = 207,322,845.20 : x - Step 2: Convert to fraction form
293,416,287.20/440,124,430.80 = 207,322,845.20/x - Step 3: Cross multiply
293,416,287.20x = 440,124,430.80 × 207,322,845.20 - Step 4: Simplify right side
293,416,287.20x = 91,247,849,235,486,512 - Step 5: Solve for x
x = 91,247,849,235,486,512/293,416,287.20 - Step 6: Final answer
x = 310,984,267.80
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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.