Finding the Fourth Proportional to 28,700,181.94, 39,596,315.08 and 18,392,588.50
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Solution
The fourth proportional to 28,700,181.94, 39,596,315.08 and 18,392,588.50 is: 25,375,404.62
Step by Step Solution
- Step 1: Write the proportion equation
28,700,181.94 : 39,596,315.08 = 18,392,588.50 : x - Step 2: Convert to fraction form
28,700,181.94/39,596,315.08 = 18,392,588.50/x - Step 3: Cross multiply
28,700,181.94x = 39,596,315.08 × 18,392,588.50 - Step 4: Simplify right side
28,700,181.94x = 728,278,729,382,784.50 - Step 5: Solve for x
x = 728,278,729,382,784.50/28,700,181.94 - Step 6: Final answer
x = 25,375,404.62
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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.