Finding the Fourth Proportional to 449,075,239.20, 673,612,858.80 and 415,482,919.20
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Solution
The fourth proportional to 449,075,239.20, 673,612,858.80 and 415,482,919.20 is: 623,224,378.80
Step by Step Solution
- Step 1: Write the proportion equation
449,075,239.20 : 673,612,858.80 = 415,482,919.20 : x - Step 2: Convert to fraction form
449,075,239.20/673,612,858.80 = 415,482,919.20/x - Step 3: Cross multiply
449,075,239.20x = 673,612,858.80 × 415,482,919.20 - Step 4: Simplify right side
449,075,239.20x = 279,874,636,984,881,376 - Step 5: Solve for x
x = 279,874,636,984,881,376/449,075,239.20 - Step 6: Final answer
x = 623,224,378.80
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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.