Finding the Fourth Proportional to 38,457,481.46, 53,062,839.86 and 22,768,715.74
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Solution
The fourth proportional to 38,457,481.46, 53,062,839.86 and 22,768,715.74 is: 31,415,804.45
Step by Step Solution
- Step 1: Write the proportion equation
38,457,481.46 : 53,062,839.86 = 22,768,715.74 : x - Step 2: Convert to fraction form
38,457,481.46/53,062,839.86 = 22,768,715.74/x - Step 3: Cross multiply
38,457,481.46x = 53,062,839.86 × 22,768,715.74 - Step 4: Simplify right side
38,457,481.46x = 1,208,172,717,129,481.25 - Step 5: Solve for x
x = 1,208,172,717,129,481.25/38,457,481.46 - Step 6: Final answer
x = 31,415,804.45
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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.