Finding the Fourth Proportional to 15,545,966.55, 21,453,313.79 and 8,576,937.81
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Solution
The fourth proportional to 15,545,966.55, 21,453,313.79 and 8,576,937.81 is: 11,836,107.95
Step by Step Solution
- Step 1: Write the proportion equation
15,545,966.55 : 21,453,313.79 = 8,576,937.81 : x - Step 2: Convert to fraction form
15,545,966.55/21,453,313.79 = 8,576,937.81/x - Step 3: Cross multiply
15,545,966.55x = 21,453,313.79 × 8,576,937.81 - Step 4: Simplify right side
15,545,966.55x = 184,003,738,195,245.41 - Step 5: Solve for x
x = 184,003,738,195,245.41/15,545,966.55 - Step 6: Final answer
x = 11,836,107.95
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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.