Finding the Fourth Proportional to 135,425,344.80, 203,138,017.20 and 115,941,799.20
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Solution
The fourth proportional to 135,425,344.80, 203,138,017.20 and 115,941,799.20 is: 173,912,698.80
Step by Step Solution
- Step 1: Write the proportion equation
135,425,344.80 : 203,138,017.20 = 115,941,799.20 : x - Step 2: Convert to fraction form
135,425,344.80/203,138,017.20 = 115,941,799.20/x - Step 3: Cross multiply
135,425,344.80x = 203,138,017.20 × 115,941,799.20 - Step 4: Simplify right side
135,425,344.80x = 23,552,187,200,088,544 - Step 5: Solve for x
x = 23,552,187,200,088,544/135,425,344.80 - Step 6: Final answer
x = 173,912,698.80
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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.