Finding the Fourth Proportional to 98,548,163.56, 135,997,346.88 and 54,498,126.25
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Solution
The fourth proportional to 98,548,163.56, 135,997,346.88 and 54,498,126.25 is: 75,207,901.52
Step by Step Solution
- Step 1: Write the proportion equation
98,548,163.56 : 135,997,346.88 = 54,498,126.25 : x - Step 2: Convert to fraction form
98,548,163.56/135,997,346.88 = 54,498,126.25/x - Step 3: Cross multiply
98,548,163.56x = 135,997,346.88 × 54,498,126.25 - Step 4: Simplify right side
98,548,163.56x = 7,411,600,579,251,296 - Step 5: Solve for x
x = 7,411,600,579,251,296/98,548,163.56 - Step 6: Final answer
x = 75,207,901.52
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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.