Finding the Fourth Proportional to 239,163,911.55, 330,046,196.00 and 129,155,614.83
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Solution
The fourth proportional to 239,163,911.55, 330,046,196.00 and 129,155,614.83 is: 178,234,747.42
Step by Step Solution
- Step 1: Write the proportion equation
239,163,911.55 : 330,046,196.00 = 129,155,614.83 : x - Step 2: Convert to fraction form
239,163,911.55/330,046,196.00 = 129,155,614.83/x - Step 3: Cross multiply
239,163,911.55x = 330,046,196.00 × 129,155,614.83 - Step 4: Simplify right side
239,163,911.55x = 42,627,319,366,036,912 - Step 5: Solve for x
x = 42,627,319,366,036,912/239,163,911.55 - Step 6: Final answer
x = 178,234,747.42
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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.