Finding the Fourth Proportional to 1,611,901,816.80, 2,413,821,646.80 and 1,289,415,544.80
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Solution
The fourth proportional to 1,611,901,816.80, 2,413,821,646.80 and 1,289,415,544.80 is: 1,930,898,719.34
Step by Step Solution
- Step 1: Write the proportion equation
1,611,901,816.80 : 2,413,821,646.80 = 1,289,415,544.80 : x - Step 2: Convert to fraction form
1,611,901,816.80/2,413,821,646.80 = 1,289,415,544.80/x - Step 3: Cross multiply
1,611,901,816.80x = 2,413,821,646.80 × 1,289,415,544.80 - Step 4: Simplify right side
1,611,901,816.80x = 3,112,419,153,758,655,488 - Step 5: Solve for x
x = 3,112,419,153,758,655,488/1,611,901,816.80 - Step 6: Final answer
x = 1,930,898,719.34
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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.