Finding the Fourth Proportional to 13,555,492.10, 18,701,903.14 and 8,663,577.70
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Solution
The fourth proportional to 13,555,492.10, 18,701,903.14 and 8,663,577.70 is: 11,952,748.73
Step by Step Solution
- Step 1: Write the proportion equation
13,555,492.10 : 18,701,903.14 = 8,663,577.70 : x - Step 2: Convert to fraction form
13,555,492.10/18,701,903.14 = 8,663,577.70/x - Step 3: Cross multiply
13,555,492.10x = 18,701,903.14 × 8,663,577.70 - Step 4: Simplify right side
13,555,492.10x = 162,025,391,006,648.97 - Step 5: Solve for x
x = 162,025,391,006,648.97/13,555,492.10 - Step 6: Final answer
x = 11,952,748.73
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1.5x scale
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.