Finding the Fourth Proportional to 53,438,542.60, 80,094,828.30 and 39,959,624.20
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Solution
The fourth proportional to 53,438,542.60, 80,094,828.30 and 39,959,624.20 is: 59,892,337.69
Step by Step Solution
- Step 1: Write the proportion equation
53,438,542.60 : 80,094,828.30 = 39,959,624.20 : x - Step 2: Convert to fraction form
53,438,542.60/80,094,828.30 = 39,959,624.20/x - Step 3: Cross multiply
53,438,542.60x = 80,094,828.30 × 39,959,624.20 - Step 4: Simplify right side
53,438,542.60x = 3,200,559,239,231,525 - Step 5: Solve for x
x = 3,200,559,239,231,525/53,438,542.60 - Step 6: Final answer
x = 59,892,337.69
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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.