Finding the Fourth Proportional to 53,448,124.80, 80,172,187.20 and 39,843,235.20
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Solution
The fourth proportional to 53,448,124.80, 80,172,187.20 and 39,843,235.20 is: 59,764,852.80
Step by Step Solution
- Step 1: Write the proportion equation
53,448,124.80 : 80,172,187.20 = 39,843,235.20 : x - Step 2: Convert to fraction form
53,448,124.80/80,172,187.20 = 39,843,235.20/x - Step 3: Cross multiply
53,448,124.80x = 80,172,187.20 × 39,843,235.20 - Step 4: Simplify right side
53,448,124.80x = 3,194,319,311,108,030 - Step 5: Solve for x
x = 3,194,319,311,108,030/53,448,124.80 - Step 6: Final answer
x = 59,764,852.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.