Finding the Fourth Proportional to 1,189,728,029.80, 1,784,592,044.70 and 1,109,106,461.80
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Solution
The fourth proportional to 1,189,728,029.80, 1,784,592,044.70 and 1,109,106,461.80 is: 1,663,659,692.70
Step by Step Solution
- Step 1: Write the proportion equation
1,189,728,029.80 : 1,784,592,044.70 = 1,109,106,461.80 : x - Step 2: Convert to fraction form
1,189,728,029.80/1,784,592,044.70 = 1,109,106,461.80/x - Step 3: Cross multiply
1,189,728,029.80x = 1,784,592,044.70 × 1,109,106,461.80 - Step 4: Simplify right side
1,189,728,029.80x = 1,979,302,568,453,644,288 - Step 5: Solve for x
x = 1,979,302,568,453,644,288/1,189,728,029.80 - Step 6: Final answer
x = 1,663,659,692.70
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Double scale
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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.