Finding the Fourth Proportional to 12,393,790.67, 17,103,609.09 and 6,812,554.12
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Solution
The fourth proportional to 12,393,790.67, 17,103,609.09 and 6,812,554.12 is: 9,401,422.51
Step by Step Solution
- Step 1: Write the proportion equation
12,393,790.67 : 17,103,609.09 = 6,812,554.12 : x - Step 2: Convert to fraction form
12,393,790.67/17,103,609.09 = 6,812,554.12/x - Step 3: Cross multiply
12,393,790.67x = 17,103,609.09 × 6,812,554.12 - Step 4: Simplify right side
12,393,790.67x = 116,519,262,572,948.95 - Step 5: Solve for x
x = 116,519,262,572,948.95/12,393,790.67 - Step 6: Final answer
x = 9,401,422.51
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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.