Finding the Fourth Proportional to 45,412,920.74, 68,119,381.11 and 45,412,920.74
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Solution
The fourth proportional to 45,412,920.74, 68,119,381.11 and 45,412,920.74 is: 68,119,381.11
Step by Step Solution
- Step 1: Write the proportion equation
45,412,920.74 : 68,119,381.11 = 45,412,920.74 : x - Step 2: Convert to fraction form
45,412,920.74/68,119,381.11 = 45,412,920.74/x - Step 3: Cross multiply
45,412,920.74x = 68,119,381.11 × 45,412,920.74 - Step 4: Simplify right side
45,412,920.74x = 3,093,500,054,979,219 - Step 5: Solve for x
x = 3,093,500,054,979,219/45,412,920.74 - Step 6: Final answer
x = 68,119,381.11
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1.5x scale
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.