Finding the Fourth Proportional to 103,439,364.99, 142,882,582.83 and 76,670,961.10
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Solution
The fourth proportional to 103,439,364.99, 142,882,582.83 and 76,670,961.10 is: 105,906,923.84
Step by Step Solution
- Step 1: Write the proportion equation
103,439,364.99 : 142,882,582.83 = 76,670,961.10 : x - Step 2: Convert to fraction form
103,439,364.99/142,882,582.83 = 76,670,961.10/x - Step 3: Cross multiply
103,439,364.99x = 142,882,582.83 × 76,670,961.10 - Step 4: Simplify right side
103,439,364.99x = 10,954,944,949,312,046 - Step 5: Solve for x
x = 10,954,944,949,312,046/103,439,364.99 - Step 6: Final answer
x = 105,906,923.84
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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.