Finding the Fourth Proportional to 30,532,532.76, 42,135,220.74 and 16,593,887.82
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Solution
The fourth proportional to 30,532,532.76, 42,135,220.74 and 16,593,887.82 is: 22,899,742.12
Step by Step Solution
- Step 1: Write the proportion equation
30,532,532.76 : 42,135,220.74 = 16,593,887.82 : x - Step 2: Convert to fraction form
30,532,532.76/42,135,220.74 = 16,593,887.82/x - Step 3: Cross multiply
30,532,532.76x = 42,135,220.74 × 16,593,887.82 - Step 4: Simplify right side
30,532,532.76x = 699,187,126,450,731.50 - Step 5: Solve for x
x = 699,187,126,450,731.50/30,532,532.76 - Step 6: Final answer
x = 22,899,742.12
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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.