Finding the Fourth Proportional to 115,897,816.63, 159,940,259.94 and 63,686,865.79
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Solution
The fourth proportional to 115,897,816.63, 159,940,259.94 and 63,686,865.79 is: 87,888,574.31
Step by Step Solution
- Step 1: Write the proportion equation
115,897,816.63 : 159,940,259.94 = 63,686,865.79 : x - Step 2: Convert to fraction form
115,897,816.63/159,940,259.94 = 63,686,865.79/x - Step 3: Cross multiply
115,897,816.63x = 159,940,259.94 × 63,686,865.79 - Step 4: Simplify right side
115,897,816.63x = 10,186,093,869,216,494 - Step 5: Solve for x
x = 10,186,093,869,216,494/115,897,816.63 - Step 6: Final answer
x = 87,888,574.31
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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.