Finding the Fourth Proportional to 13,513,280.14, 18,650,181.97 and 8,285,363.70
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Solution
The fourth proportional to 13,513,280.14, 18,650,181.97 and 8,285,363.70 is: 11,434,939.49
Step by Step Solution
- Step 1: Write the proportion equation
13,513,280.14 : 18,650,181.97 = 8,285,363.70 : x - Step 2: Convert to fraction form
13,513,280.14/18,650,181.97 = 8,285,363.70/x - Step 3: Cross multiply
13,513,280.14x = 18,650,181.97 × 8,285,363.70 - Step 4: Simplify right side
13,513,280.14x = 154,523,540,692,632.47 - Step 5: Solve for x
x = 154,523,540,692,632.47/13,513,280.14 - Step 6: Final answer
x = 11,434,939.49
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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.