Finding the Fourth Proportional to 12,792,873.36, 17,652,459.60 and 8,215,394.88
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Solution
The fourth proportional to 12,792,873.36, 17,652,459.60 and 8,215,394.88 is: 11,336,149.60
Step by Step Solution
- Step 1: Write the proportion equation
12,792,873.36 : 17,652,459.60 = 8,215,394.88 : x - Step 2: Convert to fraction form
12,792,873.36/17,652,459.60 = 8,215,394.88/x - Step 3: Cross multiply
12,792,873.36x = 17,652,459.60 × 8,215,394.88 - Step 4: Simplify right side
12,792,873.36x = 145,021,926,217,246.84 - Step 5: Solve for x
x = 145,021,926,217,246.84/12,792,873.36 - Step 6: Final answer
x = 11,336,149.60
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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.