Finding the Fourth Proportional to 128,304,402.60, 192,456,603.90 and 125,753,485.80
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Solution
The fourth proportional to 128,304,402.60, 192,456,603.90 and 125,753,485.80 is: 188,630,228.70
Step by Step Solution
- Step 1: Write the proportion equation
128,304,402.60 : 192,456,603.90 = 125,753,485.80 : x - Step 2: Convert to fraction form
128,304,402.60/192,456,603.90 = 125,753,485.80/x - Step 3: Cross multiply
128,304,402.60x = 192,456,603.90 × 125,753,485.80 - Step 4: Simplify right side
128,304,402.60x = 24,202,088,805,654,876 - Step 5: Solve for x
x = 24,202,088,805,654,876/128,304,402.60 - Step 6: Final answer
x = 188,630,228.70
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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.