Finding the Fourth Proportional to 217,276,811.24, 300,631,566.42 and 189,457,531.61
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Solution
The fourth proportional to 217,276,811.24, 300,631,566.42 and 189,457,531.61 is: 262,139,867.45
Step by Step Solution
- Step 1: Write the proportion equation
217,276,811.24 : 300,631,566.42 = 189,457,531.61 : x - Step 2: Convert to fraction form
217,276,811.24/300,631,566.42 = 189,457,531.61/x - Step 3: Cross multiply
217,276,811.24x = 300,631,566.42 × 189,457,531.61 - Step 4: Simplify right side
217,276,811.24x = 56,956,914,496,477,808 - Step 5: Solve for x
x = 56,956,914,496,477,808/217,276,811.24 - Step 6: Final answer
x = 262,139,867.45
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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.