Finding the Fourth Proportional to 103,439,364.74, 142,882,582.48 and 76,670,960.84
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Solution
The fourth proportional to 103,439,364.74, 142,882,582.48 and 76,670,960.84 is: 105,906,923.49
Step by Step Solution
- Step 1: Write the proportion equation
103,439,364.74 : 142,882,582.48 = 76,670,960.84 : x - Step 2: Convert to fraction form
103,439,364.74/142,882,582.48 = 76,670,960.84/x - Step 3: Cross multiply
103,439,364.74x = 142,882,582.48 × 76,670,960.84 - Step 4: Simplify right side
103,439,364.74x = 10,954,944,886,591,034 - Step 5: Solve for x
x = 10,954,944,886,591,034/103,439,364.74 - Step 6: Final answer
x = 105,906,923.49
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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.