Finding the Fourth Proportional to 491,617,279,982.15, 737,369,589,510.40 and 128,617,988,648.96
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Solution
The fourth proportional to 491,617,279,982.15, 737,369,589,510.40 and 128,617,988,648.96 is: 192,912,245,674.48
Step by Step Solution
- Step 1: Write the proportion equation
491,617,279,982.15 : 737,369,589,510.40 = 128,617,988,648.96 : x - Step 2: Convert to fraction form
491,617,279,982.15/737,369,589,510.40 = 128,617,988,648.96/x - Step 3: Cross multiply
491,617,279,982.15x = 737,369,589,510.40 × 128,617,988,648.96 - Step 4: Simplify right side
491,617,279,982.15x = 94,838,993,493,736,923,594,752 - Step 5: Solve for x
x = 94,838,993,493,736,923,594,752/491,617,279,982.15 - Step 6: Final answer
x = 192,912,245,674.48
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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.