Finding the Fourth Proportional to 66,414,178.95, 91,653,846.21 and 38,534,784.09
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Solution
The fourth proportional to 66,414,178.95, 91,653,846.21 and 38,534,784.09 is: 53,179,324.51
Step by Step Solution
- Step 1: Write the proportion equation
66,414,178.95 : 91,653,846.21 = 38,534,784.09 : x - Step 2: Convert to fraction form
66,414,178.95/91,653,846.21 = 38,534,784.09/x - Step 3: Cross multiply
66,414,178.95x = 91,653,846.21 × 38,534,784.09 - Step 4: Simplify right side
66,414,178.95x = 3,531,861,174,720,415 - Step 5: Solve for x
x = 3,531,861,174,720,415/66,414,178.95 - Step 6: Final answer
x = 53,179,324.51
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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.