Finding the Fourth Proportional to 1,610,205,228.80, 2,414,457,537.60 and 689,040,828.80
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Solution
The fourth proportional to 1,610,205,228.80, 2,414,457,537.60 and 689,040,828.80 is: 1,033,197,379.47
Step by Step Solution
- Step 1: Write the proportion equation
1,610,205,228.80 : 2,414,457,537.60 = 689,040,828.80 : x - Step 2: Convert to fraction form
1,610,205,228.80/2,414,457,537.60 = 689,040,828.80/x - Step 3: Cross multiply
1,610,205,228.80x = 2,414,457,537.60 × 689,040,828.80 - Step 4: Simplify right side
1,610,205,228.80x = 1,663,659,822,810,310,912 - Step 5: Solve for x
x = 1,663,659,822,810,310,912/1,610,205,228.80 - Step 6: Final answer
x = 1,033,197,379.47
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1.5x scale
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.