Finding the Fourth Proportional to 459,968,657.40, 689,952,986.10 and 276,302,647.80
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Solution
The fourth proportional to 459,968,657.40, 689,952,986.10 and 276,302,647.80 is: 414,453,971.70
Step by Step Solution
- Step 1: Write the proportion equation
459,968,657.40 : 689,952,986.10 = 276,302,647.80 : x - Step 2: Convert to fraction form
459,968,657.40/689,952,986.10 = 276,302,647.80/x - Step 3: Cross multiply
459,968,657.40x = 689,952,986.10 × 276,302,647.80 - Step 4: Simplify right side
459,968,657.40x = 190,635,836,916,946,624 - Step 5: Solve for x
x = 190,635,836,916,946,624/459,968,657.40 - Step 6: Final answer
x = 414,453,971.70
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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.