Finding the Fourth Proportional to 1,201,172,529.30, 1,801,758,793.95 and 943,183,511.70
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Solution
The fourth proportional to 1,201,172,529.30, 1,801,758,793.95 and 943,183,511.70 is: 1,414,775,267.55
Step by Step Solution
- Step 1: Write the proportion equation
1,201,172,529.30 : 1,801,758,793.95 = 943,183,511.70 : x - Step 2: Convert to fraction form
1,201,172,529.30/1,801,758,793.95 = 943,183,511.70/x - Step 3: Cross multiply
1,201,172,529.30x = 1,801,758,793.95 × 943,183,511.70 - Step 4: Simplify right side
1,201,172,529.30x = 1,699,389,186,514,117,888 - Step 5: Solve for x
x = 1,699,389,186,514,117,888/1,201,172,529.30 - Step 6: Final answer
x = 1,414,775,267.55
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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.