Finding the Fourth Proportional to 11,478,360.48, 15,840,853.86 and 6,321,720.66
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Solution
The fourth proportional to 11,478,360.48, 15,840,853.86 and 6,321,720.66 is: 8,724,369.07
Step by Step Solution
- Step 1: Write the proportion equation
11,478,360.48 : 15,840,853.86 = 6,321,720.66 : x - Step 2: Convert to fraction form
11,478,360.48/15,840,853.86 = 6,321,720.66/x - Step 3: Cross multiply
11,478,360.48x = 15,840,853.86 × 6,321,720.66 - Step 4: Simplify right side
11,478,360.48x = 100,141,453,118,802.75 - Step 5: Solve for x
x = 100,141,453,118,802.75/11,478,360.48 - Step 6: Final answer
x = 8,724,369.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.