Finding the Fourth Proportional to 10,136,551.34, 13,988,329.49 and 5,490,220.79
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Solution
The fourth proportional to 10,136,551.34, 13,988,329.49 and 5,490,220.79 is: 7,576,444.38
Step by Step Solution
- Step 1: Write the proportion equation
10,136,551.34 : 13,988,329.49 = 5,490,220.79 : x - Step 2: Convert to fraction form
10,136,551.34/13,988,329.49 = 5,490,220.79/x - Step 3: Cross multiply
10,136,551.34x = 13,988,329.49 × 5,490,220.79 - Step 4: Simplify right side
10,136,551.34x = 76,799,017,383,368.09 - Step 5: Solve for x
x = 76,799,017,383,368.09/10,136,551.34 - Step 6: Final answer
x = 7,576,444.38
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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.