Finding the Fourth Proportional to 14,617,890.99, 20,174,851.44 and 8,421,757.92
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Solution
The fourth proportional to 14,617,890.99, 20,174,851.44 and 8,421,757.92 is: 11,623,271.44
Step by Step Solution
- Step 1: Write the proportion equation
14,617,890.99 : 20,174,851.44 = 8,421,757.92 : x - Step 2: Convert to fraction form
14,617,890.99/20,174,851.44 = 8,421,757.92/x - Step 3: Cross multiply
14,617,890.99x = 20,174,851.44 × 8,421,757.92 - Step 4: Simplify right side
14,617,890.99x = 169,907,714,899,643.41 - Step 5: Solve for x
x = 169,907,714,899,643.41/14,617,890.99 - Step 6: Final answer
x = 11,623,271.44
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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.