Finding the Fourth Proportional to 11,195,412.84, 16,775,623.08 and 7,790,352.21
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Solution
The fourth proportional to 11,195,412.84, 16,775,623.08 and 7,790,352.21 is: 11,673,353.56
Step by Step Solution
- Step 1: Write the proportion equation
11,195,412.84 : 16,775,623.08 = 7,790,352.21 : x - Step 2: Convert to fraction form
11,195,412.84/16,775,623.08 = 7,790,352.21/x - Step 3: Cross multiply
11,195,412.84x = 16,775,623.08 × 7,790,352.21 - Step 4: Simplify right side
11,195,412.84x = 130,688,012,335,405 - Step 5: Solve for x
x = 130,688,012,335,405/11,195,412.84 - Step 6: Final answer
x = 11,673,353.56
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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.