Finding the Fourth Proportional to 4,729,064,155.20, 7,093,596,232.80 and 2,987,638,286.40
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Solution
The fourth proportional to 4,729,064,155.20, 7,093,596,232.80 and 2,987,638,286.40 is: 4,481,457,429.60
Step by Step Solution
- Step 1: Write the proportion equation
4,729,064,155.20 : 7,093,596,232.80 = 2,987,638,286.40 : x - Step 2: Convert to fraction form
4,729,064,155.20/7,093,596,232.80 = 2,987,638,286.40/x - Step 3: Cross multiply
4,729,064,155.20x = 7,093,596,232.80 × 2,987,638,286.40 - Step 4: Simplify right side
4,729,064,155.20x = 21,193,099,693,376,090,112 - Step 5: Solve for x
x = 21,193,099,693,376,090,112/4,729,064,155.20 - Step 6: Final answer
x = 4,481,457,429.60
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1.5x scale
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.