Finding the Fourth Proportional to 239,163,912.05, 330,046,196.69 and 129,155,615.33
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Solution
The fourth proportional to 239,163,912.05, 330,046,196.69 and 129,155,615.33 is: 178,234,748.11
Step by Step Solution
- Step 1: Write the proportion equation
239,163,912.05 : 330,046,196.69 = 129,155,615.33 : x - Step 2: Convert to fraction form
239,163,912.05/330,046,196.69 = 129,155,615.33/x - Step 3: Cross multiply
239,163,912.05x = 330,046,196.69 × 129,155,615.33 - Step 4: Simplify right side
239,163,912.05x = 42,627,319,620,177,384 - Step 5: Solve for x
x = 42,627,319,620,177,384/239,163,912.05 - Step 6: Final answer
x = 178,234,748.11
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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.