Finding the Fourth Proportional to 13,691,588.29, 18,888,854.29 and 8,181,818.44
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Solution
The fourth proportional to 13,691,588.29, 18,888,854.29 and 8,181,818.44 is: 11,287,600.32
Step by Step Solution
- Step 1: Write the proportion equation
13,691,588.29 : 18,888,854.29 = 8,181,818.44 : x - Step 2: Convert to fraction form
13,691,588.29/18,888,854.29 = 8,181,818.44/x - Step 3: Cross multiply
13,691,588.29x = 18,888,854.29 × 8,181,818.44 - Step 4: Simplify right side
13,691,588.29x = 154,545,176,340,395.09 - Step 5: Solve for x
x = 154,545,176,340,395.09/13,691,588.29 - Step 6: Final answer
x = 11,287,600.32
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1.5x scale
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.