Finding the Fourth Proportional to 66,239,437.49, 99,373,975.22 and 20,184,910.94
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Solution
The fourth proportional to 66,239,437.49, 99,373,975.22 and 20,184,910.94 is: 30,281,882.15
Step by Step Solution
- Step 1: Write the proportion equation
66,239,437.49 : 99,373,975.22 = 20,184,910.94 : x - Step 2: Convert to fraction form
66,239,437.49/99,373,975.22 = 20,184,910.94/x - Step 3: Cross multiply
66,239,437.49x = 99,373,975.22 × 20,184,910.94 - Step 4: Simplify right side
66,239,437.49x = 2,005,854,839,868,364 - Step 5: Solve for x
x = 2,005,854,839,868,364/66,239,437.49 - Step 6: Final answer
x = 30,281,882.15
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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.