Finding the Fourth Proportional to 28,641,191.66, 39,525,682.56 and 15,589,296.08
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Solution
The fourth proportional to 28,641,191.66, 39,525,682.56 and 15,589,296.08 is: 21,513,684.75
Step by Step Solution
- Step 1: Write the proportion equation
28,641,191.66 : 39,525,682.56 = 15,589,296.08 : x - Step 2: Convert to fraction form
28,641,191.66/39,525,682.56 = 15,589,296.08/x - Step 3: Cross multiply
28,641,191.66x = 39,525,682.56 × 15,589,296.08 - Step 4: Simplify right side
28,641,191.66x = 616,177,568,191,932.38 - Step 5: Solve for x
x = 616,177,568,191,932.38/28,641,191.66 - Step 6: Final answer
x = 21,513,684.75
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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.