Finding the Fourth Proportional to 136,207,109.36, 187,969,780.50 and 74,331,433.46
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Solution
The fourth proportional to 136,207,109.36, 187,969,780.50 and 74,331,433.46 is: 102,579,544.47
Step by Step Solution
- Step 1: Write the proportion equation
136,207,109.36 : 187,969,780.50 = 74,331,433.46 : x - Step 2: Convert to fraction form
136,207,109.36/187,969,780.50 = 74,331,433.46/x - Step 3: Cross multiply
136,207,109.36x = 187,969,780.50 × 74,331,433.46 - Step 4: Simplify right side
136,207,109.36x = 13,972,063,231,726,554 - Step 5: Solve for x
x = 13,972,063,231,726,554/136,207,109.36 - Step 6: Final answer
x = 102,579,544.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.