Finding the Fourth Proportional to 18,236,763,957.13, 27,319,520,429.78 and 12,563,350,318.95
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Solution
The fourth proportional to 18,236,763,957.13, 27,319,520,429.78 and 12,563,350,318.95 is: 18,820,482,982.17
Step by Step Solution
- Step 1: Write the proportion equation
18,236,763,957.13 : 27,319,520,429.78 = 12,563,350,318.95 : x - Step 2: Convert to fraction form
18,236,763,957.13/27,319,520,429.78 = 12,563,350,318.95/x - Step 3: Cross multiply
18,236,763,957.13x = 27,319,520,429.78 × 12,563,350,318.95 - Step 4: Simplify right side
18,236,763,957.13x = 343,224,705,705,037,594,624 - Step 5: Solve for x
x = 343,224,705,705,037,594,624/18,236,763,957.13 - Step 6: Final answer
x = 18,820,482,982.17
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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.