Finding the Fourth Proportional to 992,106,438.17, 1,369,017,896.51 and 574,446,912.53
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Solution
The fourth proportional to 992,106,438.17, 1,369,017,896.51 and 574,446,912.53 is: 792,685,213.59
Step by Step Solution
- Step 1: Write the proportion equation
992,106,438.17 : 1,369,017,896.51 = 574,446,912.53 : x - Step 2: Convert to fraction form
992,106,438.17/1,369,017,896.51 = 574,446,912.53/x - Step 3: Cross multiply
992,106,438.17x = 1,369,017,896.51 × 574,446,912.53 - Step 4: Simplify right side
992,106,438.17x = 786,428,103,843,075,584 - Step 5: Solve for x
x = 786,428,103,843,075,584/992,106,438.17 - Step 6: Final answer
x = 792,685,213.59
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1.5x scale
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.