Finding the Fourth Proportional to 235,438,861.75, 324,903,050.89 and 129,590,013.99
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Solution
The fourth proportional to 235,438,861.75, 324,903,050.89 and 129,590,013.99 is: 178,832,800.15
Step by Step Solution
- Step 1: Write the proportion equation
235,438,861.75 : 324,903,050.89 = 129,590,013.99 : x - Step 2: Convert to fraction form
235,438,861.75/324,903,050.89 = 129,590,013.99/x - Step 3: Cross multiply
235,438,861.75x = 324,903,050.89 × 129,590,013.99 - Step 4: Simplify right side
235,438,861.75x = 42,104,190,909,742,824 - Step 5: Solve for x
x = 42,104,190,909,742,824/235,438,861.75 - Step 6: Final answer
x = 178,832,800.15
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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.