Finding the Fourth Proportional to 1,777,092,113.80, 2,665,638,170.70 and 858,762,065.80
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Solution
The fourth proportional to 1,777,092,113.80, 2,665,638,170.70 and 858,762,065.80 is: 1,288,143,098.70
Step by Step Solution
- Step 1: Write the proportion equation
1,777,092,113.80 : 2,665,638,170.70 = 858,762,065.80 : x - Step 2: Convert to fraction form
1,777,092,113.80/2,665,638,170.70 = 858,762,065.80/x - Step 3: Cross multiply
1,777,092,113.80x = 2,665,638,170.70 × 858,762,065.80 - Step 4: Simplify right side
1,777,092,113.80x = 2,289,148,942,145,664,768 - Step 5: Solve for x
x = 2,289,148,942,145,664,768/1,777,092,113.80 - Step 6: Final answer
x = 1,288,143,098.70
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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.