Finding the Fourth Proportional to 21,089,439.84, 31,633,864.44 and 8,310,055.26
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Solution
The fourth proportional to 21,089,439.84, 31,633,864.44 and 8,310,055.26 is: 12,464,966.52
Step by Step Solution
- Step 1: Write the proportion equation
21,089,439.84 : 31,633,864.44 = 8,310,055.26 : x - Step 2: Convert to fraction form
21,089,439.84/31,633,864.44 = 8,310,055.26/x - Step 3: Cross multiply
21,089,439.84x = 31,633,864.44 × 8,310,055.26 - Step 4: Simplify right side
21,089,439.84x = 262,879,161,583,748.97 - Step 5: Solve for x
x = 262,879,161,583,748.97/21,089,439.84 - Step 6: Final answer
x = 12,464,966.52
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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.