Finding the Fourth Proportional to 53,467,423.20, 80,201,134.80 and 19,389,880.80
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Solution
The fourth proportional to 53,467,423.20, 80,201,134.80 and 19,389,880.80 is: 29,084,821.20
Step by Step Solution
- Step 1: Write the proportion equation
53,467,423.20 : 80,201,134.80 = 19,389,880.80 : x - Step 2: Convert to fraction form
53,467,423.20/80,201,134.80 = 19,389,880.80/x - Step 3: Cross multiply
53,467,423.20x = 80,201,134.80 × 19,389,880.80 - Step 4: Simplify right side
53,467,423.20x = 1,555,090,443,796,731.75 - Step 5: Solve for x
x = 1,555,090,443,796,731.75/53,467,423.20 - Step 6: Final answer
x = 29,084,821.20
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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.