Finding the Fourth Proportional to 136,829,798.16, 188,825,061.79 and 74,105,898.99
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Solution
The fourth proportional to 136,829,798.16, 188,825,061.79 and 74,105,898.99 is: 102,266,108.29
Step by Step Solution
- Step 1: Write the proportion equation
136,829,798.16 : 188,825,061.79 = 74,105,898.99 : x - Step 2: Convert to fraction form
136,829,798.16/188,825,061.79 = 74,105,898.99/x - Step 3: Cross multiply
136,829,798.16x = 188,825,061.79 × 74,105,898.99 - Step 4: Simplify right side
136,829,798.16x = 13,993,050,955,790,246 - Step 5: Solve for x
x = 13,993,050,955,790,246/136,829,798.16 - Step 6: Final answer
x = 102,266,108.29
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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.