Finding the Fourth Proportional to 28,385,608.36, 39,172,133.88 and 15,332,867.68
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Solution
The fourth proportional to 28,385,608.36, 39,172,133.88 and 15,332,867.68 is: 21,159,354.34
Step by Step Solution
- Step 1: Write the proportion equation
28,385,608.36 : 39,172,133.88 = 15,332,867.68 : x - Step 2: Convert to fraction form
28,385,608.36/39,172,133.88 = 15,332,867.68/x - Step 3: Cross multiply
28,385,608.36x = 39,172,133.88 × 15,332,867.68 - Step 4: Simplify right side
28,385,608.36x = 600,621,145,525,285 - Step 5: Solve for x
x = 600,621,145,525,285/28,385,608.36 - Step 6: Final answer
x = 21,159,354.34
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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.