Finding the Fourth Proportional to 5,310,454,757.28, 7,328,450,971.89 and 2,931,612,242.28
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Solution
The fourth proportional to 5,310,454,757.28, 7,328,450,971.89 and 2,931,612,242.28 is: 4,045,637,815.99
Step by Step Solution
- Step 1: Write the proportion equation
5,310,454,757.28 : 7,328,450,971.89 = 2,931,612,242.28 : x - Step 2: Convert to fraction form
5,310,454,757.28/7,328,450,971.89 = 2,931,612,242.28/x - Step 3: Cross multiply
5,310,454,757.28x = 7,328,450,971.89 × 2,931,612,242.28 - Step 4: Simplify right side
5,310,454,757.28x = 21,484,176,586,141,491,200 - Step 5: Solve for x
x = 21,484,176,586,141,491,200/5,310,454,757.28 - Step 6: Final answer
x = 4,045,637,815.99
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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.