Finding the Fourth Proportional to 2,126,904,722.19, 3,190,831,399.80 and 653,193,257.70
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Solution
The fourth proportional to 2,126,904,722.19, 3,190,831,399.80 and 653,193,257.70 is: 979,935,553.79
Step by Step Solution
- Step 1: Write the proportion equation
2,126,904,722.19 : 3,190,831,399.80 = 653,193,257.70 : x - Step 2: Convert to fraction form
2,126,904,722.19/3,190,831,399.80 = 653,193,257.70/x - Step 3: Cross multiply
2,126,904,722.19x = 3,190,831,399.80 × 653,193,257.70 - Step 4: Simplify right side
2,126,904,722.19x = 2,084,229,556,806,813,440 - Step 5: Solve for x
x = 2,084,229,556,806,813,440/2,126,904,722.19 - Step 6: Final answer
x = 979,935,553.79
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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.