Finding the Fourth Proportional to 10,939,786.44, 15,106,588.74 and 6,816,854.04
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Solution
The fourth proportional to 10,939,786.44, 15,106,588.74 and 6,816,854.04 is: 9,413,292.58
Step by Step Solution
- Step 1: Write the proportion equation
10,939,786.44 : 15,106,588.74 = 6,816,854.04 : x - Step 2: Convert to fraction form
10,939,786.44/15,106,588.74 = 6,816,854.04/x - Step 3: Cross multiply
10,939,786.44x = 15,106,588.74 × 6,816,854.04 - Step 4: Simplify right side
10,939,786.44x = 102,979,410,482,887.52 - Step 5: Solve for x
x = 102,979,410,482,887.52/10,939,786.44 - Step 6: Final answer
x = 9,413,292.58
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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.