Finding the Fourth Proportional to 136,207,038.24, 187,969,682.58 and 74,331,362.52
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Solution
The fourth proportional to 136,207,038.24, 187,969,682.58 and 74,331,362.52 is: 102,579,446.69
Step by Step Solution
- Step 1: Write the proportion equation
136,207,038.24 : 187,969,682.58 = 74,331,362.52 : x - Step 2: Convert to fraction form
136,207,038.24/187,969,682.58 = 74,331,362.52/x - Step 3: Cross multiply
136,207,038.24x = 187,969,682.58 × 74,331,362.52 - Step 4: Simplify right side
136,207,038.24x = 13,972,042,618,623,310 - Step 5: Solve for x
x = 13,972,042,618,623,310/136,207,038.24 - Step 6: Final answer
x = 102,579,446.69
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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.