Finding the Fourth Proportional to 30,126,941.67, 41,579,724.09 and 18,373,029.08
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Solution
The fourth proportional to 30,126,941.67, 41,579,724.09 and 18,373,029.08 is: 25,357,551.67
Step by Step Solution
- Step 1: Write the proportion equation
30,126,941.67 : 41,579,724.09 = 18,373,029.08 : x - Step 2: Convert to fraction form
30,126,941.67/41,579,724.09 = 18,373,029.08/x - Step 3: Cross multiply
30,126,941.67x = 41,579,724.09 × 18,373,029.08 - Step 4: Simplify right side
30,126,941.67x = 763,945,479,993,828.38 - Step 5: Solve for x
x = 763,945,479,993,828.38/30,126,941.67 - Step 6: Final answer
x = 25,357,551.67
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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.