Finding the Fourth Proportional to 12,106,491.52, 16,706,121.12 and 6,808,979.68
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Solution
The fourth proportional to 12,106,491.52, 16,706,121.12 and 6,808,979.68 is: 9,395,921.11
Step by Step Solution
- Step 1: Write the proportion equation
12,106,491.52 : 16,706,121.12 = 6,808,979.68 : x - Step 2: Convert to fraction form
12,106,491.52/16,706,121.12 = 6,808,979.68/x - Step 3: Cross multiply
12,106,491.52x = 16,706,121.12 × 6,808,979.68 - Step 4: Simplify right side
12,106,491.52x = 113,751,639,237,698.83 - Step 5: Solve for x
x = 113,751,639,237,698.83/12,106,491.52 - Step 6: Final answer
x = 9,395,921.11
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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.