Finding the Fourth Proportional to 136,963,318.86, 189,029,573.24 and 86,732,122.46
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Solution
The fourth proportional to 136,963,318.86, 189,029,573.24 and 86,732,122.46 is: 119,703,116.35
Step by Step Solution
- Step 1: Write the proportion equation
136,963,318.86 : 189,029,573.24 = 86,732,122.46 : x - Step 2: Convert to fraction form
136,963,318.86/189,029,573.24 = 86,732,122.46/x - Step 3: Cross multiply
136,963,318.86x = 189,029,573.24 × 86,732,122.46 - Step 4: Simplify right side
136,963,318.86x = 16,394,936,093,434,412 - Step 5: Solve for x
x = 16,394,936,093,434,412/136,963,318.86 - Step 6: Final answer
x = 119,703,116.35
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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.