Finding the Fourth Proportional to 1,941,696,710.40, 2,912,545,065.60 and 649,232,198.40
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Solution
The fourth proportional to 1,941,696,710.40, 2,912,545,065.60 and 649,232,198.40 is: 973,848,297.60
Step by Step Solution
- Step 1: Write the proportion equation
1,941,696,710.40 : 2,912,545,065.60 = 649,232,198.40 : x - Step 2: Convert to fraction form
1,941,696,710.40/2,912,545,065.60 = 649,232,198.40/x - Step 3: Cross multiply
1,941,696,710.40x = 2,912,545,065.60 × 649,232,198.40 - Step 4: Simplify right side
1,941,696,710.40x = 1,890,918,035,878,560,000 - Step 5: Solve for x
x = 1,890,918,035,878,560,000/1,941,696,710.40 - Step 6: Final answer
x = 973,848,297.60
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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.