Finding the Fourth Proportional to 266,121,391.60, 399,480,685.80 and 205,804,514.80
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Solution
The fourth proportional to 266,121,391.60, 399,480,685.80 and 205,804,514.80 is: 308,937,692.75
Step by Step Solution
- Step 1: Write the proportion equation
266,121,391.60 : 399,480,685.80 = 205,804,514.80 : x - Step 2: Convert to fraction form
266,121,391.60/399,480,685.80 = 205,804,514.80/x - Step 3: Cross multiply
266,121,391.60x = 399,480,685.80 × 205,804,514.80 - Step 4: Simplify right side
266,121,391.60x = 82,214,928,713,040,256 - Step 5: Solve for x
x = 82,214,928,713,040,256/266,121,391.60 - Step 6: Final answer
x = 308,937,692.75
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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.