Finding the Fourth Proportional to 115,743,438.14, 159,653,290.88 and 68,667,182.39
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Solution
The fourth proportional to 115,743,438.14, 159,653,290.88 and 68,667,182.39 is: 94,717,608.37
Step by Step Solution
- Step 1: Write the proportion equation
115,743,438.14 : 159,653,290.88 = 68,667,182.39 : x - Step 2: Convert to fraction form
115,743,438.14/159,653,290.88 = 68,667,182.39/x - Step 3: Cross multiply
115,743,438.14x = 159,653,290.88 × 68,667,182.39 - Step 4: Simplify right side
115,743,438.14x = 10,962,941,644,591,484 - Step 5: Solve for x
x = 10,962,941,644,591,484/115,743,438.14 - Step 6: Final answer
x = 94,717,608.37
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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.