Finding the Fourth Proportional to 81,951,698.40, 122,933,768.40 and 24,439,480.80
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Solution
The fourth proportional to 81,951,698.40, 122,933,768.40 and 24,439,480.80 is: 36,661,076.36
Step by Step Solution
- Step 1: Write the proportion equation
81,951,698.40 : 122,933,768.40 = 24,439,480.80 : x - Step 2: Convert to fraction form
81,951,698.40/122,933,768.40 = 24,439,480.80/x - Step 3: Cross multiply
81,951,698.40x = 122,933,768.40 × 24,439,480.80 - Step 4: Simplify right side
81,951,698.40x = 3,004,437,472,483,447 - Step 5: Solve for x
x = 3,004,437,472,483,447/81,951,698.40 - Step 6: Final answer
x = 36,661,076.36
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.