Finding the Fourth Proportional to 6,720,764.40, 10,079,980.20 and 2,458,738.80
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Solution
The fourth proportional to 6,720,764.40, 10,079,980.20 and 2,458,738.80 is: 3,687,681.48
Step by Step Solution
- Step 1: Write the proportion equation
6,720,764.40 : 10,079,980.20 = 2,458,738.80 : x - Step 2: Convert to fraction form
6,720,764.40/10,079,980.20 = 2,458,738.80/x - Step 3: Cross multiply
6,720,764.40x = 10,079,980.20 × 2,458,738.80 - Step 4: Simplify right side
6,720,764.40x = 24,784,038,420,971.76 - Step 5: Solve for x
x = 24,784,038,420,971.76/6,720,764.40 - Step 6: Final answer
x = 3,687,681.48
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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.