Finding the Fourth Proportional to 2,620,220,140.26, 3,931,690,457.70 and 1,068,649,769.70
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Solution
The fourth proportional to 2,620,220,140.26, 3,931,690,457.70 and 1,068,649,769.70 is: 1,603,529,427.77
Step by Step Solution
- Step 1: Write the proportion equation
2,620,220,140.26 : 3,931,690,457.70 = 1,068,649,769.70 : x - Step 2: Convert to fraction form
2,620,220,140.26/3,931,690,457.70 = 1,068,649,769.70/x - Step 3: Cross multiply
2,620,220,140.26x = 3,931,690,457.70 × 1,068,649,769.70 - Step 4: Simplify right side
2,620,220,140.26x = 4,201,600,102,152,792,576 - Step 5: Solve for x
x = 4,201,600,102,152,792,576/2,620,220,140.26 - Step 6: Final answer
x = 1,603,529,427.77
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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.