Finding the Fourth Proportional to 12,491,064.21, 17,232,389.76 and 8,362,423.74
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Solution
The fourth proportional to 12,491,064.21, 17,232,389.76 and 8,362,423.74 is: 11,536,610.72
Step by Step Solution
- Step 1: Write the proportion equation
12,491,064.21 : 17,232,389.76 = 8,362,423.74 : x - Step 2: Convert to fraction form
12,491,064.21/17,232,389.76 = 8,362,423.74/x - Step 3: Cross multiply
12,491,064.21x = 17,232,389.76 × 8,362,423.74 - Step 4: Simplify right side
12,491,064.21x = 144,104,545,225,956.91 - Step 5: Solve for x
x = 144,104,545,225,956.91/12,491,064.21 - Step 6: Final answer
x = 11,536,610.72
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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.