Finding the Fourth Proportional to 122,531,846.40, 183,545,827.20 and 84,236,601.60
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Solution
The fourth proportional to 122,531,846.40, 183,545,827.20 and 84,236,601.60 is: 126,181,700.31
Step by Step Solution
- Step 1: Write the proportion equation
122,531,846.40 : 183,545,827.20 = 84,236,601.60 : x - Step 2: Convert to fraction form
122,531,846.40/183,545,827.20 = 84,236,601.60/x - Step 3: Cross multiply
122,531,846.40x = 183,545,827.20 × 84,236,601.60 - Step 4: Simplify right side
122,531,846.40x = 15,461,276,721,188,842 - Step 5: Solve for x
x = 15,461,276,721,188,842/122,531,846.40 - Step 6: Final answer
x = 126,181,700.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.