Finding the Fourth Proportional to 9,907,812.60, 14,861,718.90 and 2,720,455.80
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Solution
The fourth proportional to 9,907,812.60, 14,861,718.90 and 2,720,455.80 is: 4,080,683.70
Step by Step Solution
- Step 1: Write the proportion equation
9,907,812.60 : 14,861,718.90 = 2,720,455.80 : x - Step 2: Convert to fraction form
9,907,812.60/14,861,718.90 = 2,720,455.80/x - Step 3: Cross multiply
9,907,812.60x = 14,861,718.90 × 2,720,455.80 - Step 4: Simplify right side
9,907,812.60x = 40,430,649,379,474.62 - Step 5: Solve for x
x = 40,430,649,379,474.62/9,907,812.60 - Step 6: Final answer
x = 4,080,683.70
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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.