Finding the Fourth Proportional to 7,830,373.92, 11,745,537.12 and 2,150,603.28
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Solution
The fourth proportional to 7,830,373.92, 11,745,537.12 and 2,150,603.28 is: 3,225,898.39
Step by Step Solution
- Step 1: Write the proportion equation
7,830,373.92 : 11,745,537.12 = 2,150,603.28 : x - Step 2: Convert to fraction form
7,830,373.92/11,745,537.12 = 2,150,603.28/x - Step 3: Cross multiply
7,830,373.92x = 11,745,537.12 × 2,150,603.28 - Step 4: Simplify right side
7,830,373.92x = 25,259,990,655,633.75 - Step 5: Solve for x
x = 25,259,990,655,633.75/7,830,373.92 - Step 6: Final answer
x = 3,225,898.39
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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.