Finding the Fourth Proportional to 9,431,135.75, 13,014,967.47 and 5,138,783.75
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Solution
The fourth proportional to 9,431,135.75, 13,014,967.47 and 5,138,783.75 is: 7,091,521.65
Step by Step Solution
- Step 1: Write the proportion equation
9,431,135.75 : 13,014,967.47 = 5,138,783.75 : x - Step 2: Convert to fraction form
9,431,135.75/13,014,967.47 = 5,138,783.75/x - Step 3: Cross multiply
9,431,135.75x = 13,014,967.47 × 5,138,783.75 - Step 4: Simplify right side
9,431,135.75x = 66,881,103,341,614.62 - Step 5: Solve for x
x = 66,881,103,341,614.62/9,431,135.75 - Step 6: Final answer
x = 7,091,521.65
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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.