Finding the Fourth Proportional to 76,730,115.36, 105,886,323.84 and 41,922,058.56
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Solution
The fourth proportional to 76,730,115.36, 105,886,323.84 and 41,922,058.56 is: 57,851,765.87
Step by Step Solution
- Step 1: Write the proportion equation
76,730,115.36 : 105,886,323.84 = 41,922,058.56 : x - Step 2: Convert to fraction form
76,730,115.36/105,886,323.84 = 41,922,058.56/x - Step 3: Cross multiply
76,730,115.36x = 105,886,323.84 × 41,922,058.56 - Step 4: Simplify right side
76,730,115.36x = 4,438,972,668,723,604.50 - Step 5: Solve for x
x = 4,438,972,668,723,604.50/76,730,115.36 - Step 6: Final answer
x = 57,851,765.87
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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.