Finding the Fourth Proportional to 1,889,571,821.80, 2,834,357,732.70 and 1,297,759,124.20
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Solution
The fourth proportional to 1,889,571,821.80, 2,834,357,732.70 and 1,297,759,124.20 is: 1,946,638,686.30
Step by Step Solution
- Step 1: Write the proportion equation
1,889,571,821.80 : 2,834,357,732.70 = 1,297,759,124.20 : x - Step 2: Convert to fraction form
1,889,571,821.80/2,834,357,732.70 = 1,297,759,124.20/x - Step 3: Cross multiply
1,889,571,821.80x = 2,834,357,732.70 × 1,297,759,124.20 - Step 4: Simplify right side
1,889,571,821.80x = 3,678,313,608,858,249,728 - Step 5: Solve for x
x = 3,678,313,608,858,249,728/1,889,571,821.80 - Step 6: Final answer
x = 1,946,638,686.30
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.