Finding the Fourth Proportional to 660,183,670.20, 990,275,505.30 and 466,473,425.70
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Solution
The fourth proportional to 660,183,670.20, 990,275,505.30 and 466,473,425.70 is: 699,710,138.55
Step by Step Solution
- Step 1: Write the proportion equation
660,183,670.20 : 990,275,505.30 = 466,473,425.70 : x - Step 2: Convert to fraction form
660,183,670.20/990,275,505.30 = 466,473,425.70/x - Step 3: Cross multiply
660,183,670.20x = 990,275,505.30 × 466,473,425.70 - Step 4: Simplify right side
660,183,670.20x = 461,937,207,344,089,472 - Step 5: Solve for x
x = 461,937,207,344,089,472/660,183,670.20 - Step 6: Final answer
x = 699,710,138.55
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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.