Finding the Fourth Proportional to 5,112,135,764.13, 7,672,917,423.21 and 2,592,832,128.18
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Solution
The fourth proportional to 5,112,135,764.13, 7,672,917,423.21 and 2,592,832,128.18 is: 3,891,638,980.20
Step by Step Solution
- Step 1: Write the proportion equation
5,112,135,764.13 : 7,672,917,423.21 = 2,592,832,128.18 : x - Step 2: Convert to fraction form
5,112,135,764.13/7,672,917,423.21 = 2,592,832,128.18/x - Step 3: Cross multiply
5,112,135,764.13x = 7,672,917,423.21 × 2,592,832,128.18 - Step 4: Simplify right side
5,112,135,764.13x = 19,894,586,811,770,986,496 - Step 5: Solve for x
x = 19,894,586,811,770,986,496/5,112,135,764.13 - Step 6: Final answer
x = 3,891,638,980.20
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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.