Finding the Fourth Proportional to 71,830,642.33, 99,126,286.12 and 38,790,889.62
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Solution
The fourth proportional to 71,830,642.33, 99,126,286.12 and 38,790,889.62 is: 53,531,427.52
Step by Step Solution
- Step 1: Write the proportion equation
71,830,642.33 : 99,126,286.12 = 38,790,889.62 : x - Step 2: Convert to fraction form
71,830,642.33/99,126,286.12 = 38,790,889.62/x - Step 3: Cross multiply
71,830,642.33x = 99,126,286.12 × 38,790,889.62 - Step 4: Simplify right side
71,830,642.33x = 3,845,196,823,321,458 - Step 5: Solve for x
x = 3,845,196,823,321,458/71,830,642.33 - Step 6: Final answer
x = 53,531,427.52
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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.