Finding the Fourth Proportional to 76,992,742.38, 115,494,427.99 and 22,405,780.07
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Solution
The fourth proportional to 76,992,742.38, 115,494,427.99 and 22,405,780.07 is: 33,610,216.66
Step by Step Solution
- Step 1: Write the proportion equation
76,992,742.38 : 115,494,427.99 = 22,405,780.07 : x - Step 2: Convert to fraction form
76,992,742.38/115,494,427.99 = 22,405,780.07/x - Step 3: Cross multiply
76,992,742.38x = 115,494,427.99 × 22,405,780.07 - Step 4: Simplify right side
76,992,742.38x = 2,587,742,752,612,111 - Step 5: Solve for x
x = 2,587,742,752,612,111/76,992,742.38 - Step 6: Final answer
x = 33,610,216.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.