Finding the Fourth Proportional to 1,226,545,163.40, 1,839,817,745.10 and 736,769,137.80
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Solution
The fourth proportional to 1,226,545,163.40, 1,839,817,745.10 and 736,769,137.80 is: 1,105,153,706.70
Step by Step Solution
- Step 1: Write the proportion equation
1,226,545,163.40 : 1,839,817,745.10 = 736,769,137.80 : x - Step 2: Convert to fraction form
1,226,545,163.40/1,839,817,745.10 = 736,769,137.80/x - Step 3: Cross multiply
1,226,545,163.40x = 1,839,817,745.10 × 736,769,137.80 - Step 4: Simplify right side
1,226,545,163.40x = 1,355,520,933,766,467,072 - Step 5: Solve for x
x = 1,355,520,933,766,467,072/1,226,545,163.40 - Step 6: Final answer
x = 1,105,153,706.70
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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.