Finding the Fourth Proportional to 38,986,356.18, 53,799,040.08 and 21,341,845.44
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Solution
The fourth proportional to 38,986,356.18, 53,799,040.08 and 21,341,845.44 is: 29,450,579.91
Step by Step Solution
- Step 1: Write the proportion equation
38,986,356.18 : 53,799,040.08 = 21,341,845.44 : x - Step 2: Convert to fraction form
38,986,356.18/53,799,040.08 = 21,341,845.44/x - Step 3: Cross multiply
38,986,356.18x = 53,799,040.08 × 21,341,845.44 - Step 4: Simplify right side
38,986,356.18x = 1,148,170,798,207,725.25 - Step 5: Solve for x
x = 1,148,170,798,207,725.25/38,986,356.18 - Step 6: Final answer
x = 29,450,579.91
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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.