Finding the Fourth Proportional to 20,126,768.99, 30,190,415.85 and 5,750,305.79
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Solution
The fourth proportional to 20,126,768.99, 30,190,415.85 and 5,750,305.79 is: 8,625,533.64
Step by Step Solution
- Step 1: Write the proportion equation
20,126,768.99 : 30,190,415.85 = 5,750,305.79 : x - Step 2: Convert to fraction form
20,126,768.99/30,190,415.85 = 5,750,305.79/x - Step 3: Cross multiply
20,126,768.99x = 30,190,415.85 × 5,750,305.79 - Step 4: Simplify right side
20,126,768.99x = 173,604,122,913,810.72 - Step 5: Solve for x
x = 173,604,122,913,810.72/20,126,768.99 - Step 6: Final answer
x = 8,625,533.64
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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.