Finding the Fourth Proportional to 98,118,245.16, 135,397,077.41 and 54,062,778.61
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Solution
The fourth proportional to 98,118,245.16, 135,397,077.41 and 54,062,778.61 is: 74,603,272.91
Step by Step Solution
- Step 1: Write the proportion equation
98,118,245.16 : 135,397,077.41 = 54,062,778.61 : x - Step 2: Convert to fraction form
98,118,245.16/135,397,077.41 = 54,062,778.61/x - Step 3: Cross multiply
98,118,245.16x = 135,397,077.41 × 54,062,778.61 - Step 4: Simplify right side
98,118,245.16x = 7,319,942,220,762,265 - Step 5: Solve for x
x = 7,319,942,220,762,265/98,118,245.16 - Step 6: Final answer
x = 74,603,272.91
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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.