Finding the Fourth Proportional to 126,029,122.80, 189,043,684.20 and 106,545,577.20
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Solution
The fourth proportional to 126,029,122.80, 189,043,684.20 and 106,545,577.20 is: 159,818,365.80
Step by Step Solution
- Step 1: Write the proportion equation
126,029,122.80 : 189,043,684.20 = 106,545,577.20 : x - Step 2: Convert to fraction form
126,029,122.80/189,043,684.20 = 106,545,577.20/x - Step 3: Cross multiply
126,029,122.80x = 189,043,684.20 × 106,545,577.20 - Step 4: Simplify right side
126,029,122.80x = 20,141,768,449,103,520 - Step 5: Solve for x
x = 20,141,768,449,103,520/126,029,122.80 - Step 6: Final answer
x = 159,818,365.80
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1.5x scale
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.