Finding the Fourth Proportional to 85,451,134.56, 117,921,913.88 and 46,292,631.18
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Solution
The fourth proportional to 85,451,134.56, 117,921,913.88 and 46,292,631.18 is: 63,883,477.91
Step by Step Solution
- Step 1: Write the proportion equation
85,451,134.56 : 117,921,913.88 = 46,292,631.18 : x - Step 2: Convert to fraction form
85,451,134.56/117,921,913.88 = 46,292,631.18/x - Step 3: Cross multiply
85,451,134.56x = 117,921,913.88 × 46,292,631.18 - Step 4: Simplify right side
85,451,134.56x = 5,458,915,667,286,563 - Step 5: Solve for x
x = 5,458,915,667,286,563/85,451,134.56 - Step 6: Final answer
x = 63,883,477.91
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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.