Finding the Fourth Proportional to 2,079,652,811.10, 3,118,723,389.45 and 699,512,343.90
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Solution
The fourth proportional to 2,079,652,811.10, 3,118,723,389.45 and 699,512,343.90 is: 1,049,014,285.70
Step by Step Solution
- Step 1: Write the proportion equation
2,079,652,811.10 : 3,118,723,389.45 = 699,512,343.90 : x - Step 2: Convert to fraction form
2,079,652,811.10/3,118,723,389.45 = 699,512,343.90/x - Step 3: Cross multiply
2,079,652,811.10x = 3,118,723,389.45 × 699,512,343.90 - Step 4: Simplify right side
2,079,652,811.10x = 2,181,585,508,129,921,792 - Step 5: Solve for x
x = 2,181,585,508,129,921,792/2,079,652,811.10 - Step 6: Final answer
x = 1,049,014,285.70
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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.