Finding the Fourth Proportional to 239,224,450.40, 330,129,873.99 and 129,216,163.40
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Solution
The fourth proportional to 239,224,450.40, 330,129,873.99 and 129,216,163.40 is: 178,318,377.02
Step by Step Solution
- Step 1: Write the proportion equation
239,224,450.40 : 330,129,873.99 = 129,216,163.40 : x - Step 2: Convert to fraction form
239,224,450.40/330,129,873.99 = 129,216,163.40/x - Step 3: Cross multiply
239,224,450.40x = 330,129,873.99 × 129,216,163.40 - Step 4: Simplify right side
239,224,450.40x = 42,658,115,739,241,848 - Step 5: Solve for x
x = 42,658,115,739,241,848/239,224,450.40 - Step 6: Final answer
x = 178,318,377.02
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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.