Finding the Fourth Proportional to 27,272,891.70, 40,909,337.55 and 7,078,133.70
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Solution
The fourth proportional to 27,272,891.70, 40,909,337.55 and 7,078,133.70 is: 10,617,200.55
Step by Step Solution
- Step 1: Write the proportion equation
27,272,891.70 : 40,909,337.55 = 7,078,133.70 : x - Step 2: Convert to fraction form
27,272,891.70/40,909,337.55 = 7,078,133.70/x - Step 3: Cross multiply
27,272,891.70x = 40,909,337.55 × 7,078,133.70 - Step 4: Simplify right side
27,272,891.70x = 289,561,760,757,330.44 - Step 5: Solve for x
x = 289,561,760,757,330.44/27,272,891.70 - Step 6: Final answer
x = 10,617,200.55
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1.5x scale
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.