Finding the Fourth Proportional to 28,026,565.44, 38,676,643.20 and 15,149,509.44
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Solution
The fourth proportional to 28,026,565.44, 38,676,643.20 and 15,149,509.44 is: 20,906,313.78
Step by Step Solution
- Step 1: Write the proportion equation
28,026,565.44 : 38,676,643.20 = 15,149,509.44 : x - Step 2: Convert to fraction form
28,026,565.44/38,676,643.20 = 15,149,509.44/x - Step 3: Cross multiply
28,026,565.44x = 38,676,643.20 × 15,149,509.44 - Step 4: Simplify right side
28,026,565.44x = 585,932,171,265,911.88 - Step 5: Solve for x
x = 585,932,171,265,911.88/28,026,565.44 - Step 6: Final answer
x = 20,906,313.78
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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.