Finding the Fourth Proportional to 18,349,772.22, 25,326,538.74 and 11,639,764.62
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Solution
The fourth proportional to 18,349,772.22, 25,326,538.74 and 11,639,764.62 is: 16,065,319.29
Step by Step Solution
- Step 1: Write the proportion equation
18,349,772.22 : 25,326,538.74 = 11,639,764.62 : x - Step 2: Convert to fraction form
18,349,772.22/25,326,538.74 = 11,639,764.62/x - Step 3: Cross multiply
18,349,772.22x = 25,326,538.74 × 11,639,764.62 - Step 4: Simplify right side
18,349,772.22x = 294,794,949,572,911.31 - Step 5: Solve for x
x = 294,794,949,572,911.31/18,349,772.22 - Step 6: Final answer
x = 16,065,319.29
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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.