Finding the Fourth Proportional to 11,391,846.09, 15,720,795.49 and 6,164,854.47
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Solution
The fourth proportional to 11,391,846.09, 15,720,795.49 and 6,164,854.47 is: 8,507,525.08
Step by Step Solution
- Step 1: Write the proportion equation
11,391,846.09 : 15,720,795.49 = 6,164,854.47 : x - Step 2: Convert to fraction form
11,391,846.09/15,720,795.49 = 6,164,854.47/x - Step 3: Cross multiply
11,391,846.09x = 15,720,795.49 × 6,164,854.47 - Step 4: Simplify right side
11,391,846.09x = 96,916,416,371,502.31 - Step 5: Solve for x
x = 96,916,416,371,502.31/11,391,846.09 - Step 6: Final answer
x = 8,507,525.08
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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.