Finding the Fourth Proportional to 28,385,584.49, 39,172,121.73 and 15,332,843.13
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Solution
The fourth proportional to 28,385,584.49, 39,172,121.73 and 15,332,843.13 is: 21,159,331.70
Step by Step Solution
- Step 1: Write the proportion equation
28,385,584.49 : 39,172,121.73 = 15,332,843.13 : x - Step 2: Convert to fraction form
28,385,584.49/39,172,121.73 = 15,332,843.13/x - Step 3: Cross multiply
28,385,584.49x = 39,172,121.73 × 15,332,843.13 - Step 4: Simplify right side
28,385,584.49x = 600,619,997,555,354.25 - Step 5: Solve for x
x = 600,619,997,555,354.25/28,385,584.49 - Step 6: Final answer
x = 21,159,331.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.