Finding the Fourth Proportional to 38,491,794.36, 53,118,226.53 and 20,850,364.26
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Solution
The fourth proportional to 38,491,794.36, 53,118,226.53 and 20,850,364.26 is: 28,773,259.09
Step by Step Solution
- Step 1: Write the proportion equation
38,491,794.36 : 53,118,226.53 = 20,850,364.26 : x - Step 2: Convert to fraction form
38,491,794.36/53,118,226.53 = 20,850,364.26/x - Step 3: Cross multiply
38,491,794.36x = 53,118,226.53 × 20,850,364.26 - Step 4: Simplify right side
38,491,794.36x = 1,107,534,371,995,695.88 - Step 5: Solve for x
x = 1,107,534,371,995,695.88/38,491,794.36 - Step 6: Final answer
x = 28,773,259.09
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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.