Finding the Fourth Proportional to 3,868,318,464.72, 5,338,297,559.04 and 2,197,659,279.48
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Solution
The fourth proportional to 3,868,318,464.72, 5,338,297,559.04 and 2,197,659,279.48 is: 3,032,780,075.95
Step by Step Solution
- Step 1: Write the proportion equation
3,868,318,464.72 : 5,338,297,559.04 = 2,197,659,279.48 : x - Step 2: Convert to fraction form
3,868,318,464.72/5,338,297,559.04 = 2,197,659,279.48/x - Step 3: Cross multiply
3,868,318,464.72x = 5,338,297,559.04 × 2,197,659,279.48 - Step 4: Simplify right side
3,868,318,464.72x = 11,731,759,167,249,688,576 - Step 5: Solve for x
x = 11,731,759,167,249,688,576/3,868,318,464.72 - Step 6: Final answer
x = 3,032,780,075.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.