Finding the Fourth Proportional to 23,729,979.43, 32,748,643.12 and 13,275,372.09
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Solution
The fourth proportional to 23,729,979.43, 32,748,643.12 and 13,275,372.09 is: 18,320,724.81
Step by Step Solution
- Step 1: Write the proportion equation
23,729,979.43 : 32,748,643.12 = 13,275,372.09 : x - Step 2: Convert to fraction form
23,729,979.43/32,748,643.12 = 13,275,372.09/x - Step 3: Cross multiply
23,729,979.43x = 32,748,643.12 × 13,275,372.09 - Step 4: Simplify right side
23,729,979.43x = 434,750,422,860,618.50 - Step 5: Solve for x
x = 434,750,422,860,618.50/23,729,979.43 - Step 6: Final answer
x = 18,320,724.81
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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.