Finding the Fourth Proportional to 109,321,235.07, 163,982,163.89 and 31,604,465.75
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Solution
The fourth proportional to 109,321,235.07, 163,982,163.89 and 31,604,465.75 is: 47,406,788.61
Step by Step Solution
- Step 1: Write the proportion equation
109,321,235.07 : 163,982,163.89 = 31,604,465.75 : x - Step 2: Convert to fraction form
109,321,235.07/163,982,163.89 = 31,604,465.75/x - Step 3: Cross multiply
109,321,235.07x = 163,982,163.89 × 31,604,465.75 - Step 4: Simplify right side
109,321,235.07x = 5,182,568,681,452,481 - Step 5: Solve for x
x = 5,182,568,681,452,481/109,321,235.07 - Step 6: Final answer
x = 47,406,788.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.