Finding the Fourth Proportional to 293,601,478.10, 440,388,220.35 and 99,493,855.70
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Solution
The fourth proportional to 293,601,478.10, 440,388,220.35 and 99,493,855.70 is: 149,236,040.40
Step by Step Solution
- Step 1: Write the proportion equation
293,601,478.10 : 440,388,220.35 = 99,493,855.70 : x - Step 2: Convert to fraction form
293,601,478.10/440,388,220.35 = 99,493,855.70/x - Step 3: Cross multiply
293,601,478.10x = 440,388,220.35 × 99,493,855.70 - Step 4: Simplify right side
293,601,478.10x = 43,815,922,047,482,704 - Step 5: Solve for x
x = 43,815,922,047,482,704/293,601,478.10 - Step 6: Final answer
x = 149,236,040.40
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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.