Finding the Fourth Proportional to 10,118,103.07, 13,963,786.59 and 6,448,666.99
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Solution
The fourth proportional to 10,118,103.07, 13,963,786.59 and 6,448,666.99 is: 8,899,673.09
Step by Step Solution
- Step 1: Write the proportion equation
10,118,103.07 : 13,963,786.59 = 6,448,666.99 : x - Step 2: Convert to fraction form
10,118,103.07/13,963,786.59 = 6,448,666.99/x - Step 3: Cross multiply
10,118,103.07x = 13,963,786.59 × 6,448,666.99 - Step 4: Simplify right side
10,118,103.07x = 90,047,809,568,518.73 - Step 5: Solve for x
x = 90,047,809,568,518.73/10,118,103.07 - Step 6: Final answer
x = 8,899,673.09
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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.