Finding the Fourth Proportional to 1,121,689,511.10, 1,682,534,266.65 and 930,586,535.10
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Solution
The fourth proportional to 1,121,689,511.10, 1,682,534,266.65 and 930,586,535.10 is: 1,395,879,802.65
Step by Step Solution
- Step 1: Write the proportion equation
1,121,689,511.10 : 1,682,534,266.65 = 930,586,535.10 : x - Step 2: Convert to fraction form
1,121,689,511.10/1,682,534,266.65 = 930,586,535.10/x - Step 3: Cross multiply
1,121,689,511.10x = 1,682,534,266.65 × 930,586,535.10 - Step 4: Simplify right side
1,121,689,511.10x = 1,565,743,733,388,843,008 - Step 5: Solve for x
x = 1,565,743,733,388,843,008/1,121,689,511.10 - Step 6: Final answer
x = 1,395,879,802.65
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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.